2010 lakes catalog

2One of our lake technicians testing a new sprayer.

Does your lake or pond have ... Frequent algae blooms?

Low oxygen in the lower levels?

High nutrient levels?

Toxic gases such as hydrogen sulfide and ammonia?

Stagnant, inadequate mixing?

Lack of benthic organisms such as mussels and snails?

Foul odors and fishkills?

The ResultsA Great Lakes aeration/destratification system will:

Eliminate thermal stratification.

Reduce BOD and COD.

Increase bottom redox potential.

Reduce sedimentation rate (muck accumulation).

Reduce internal nutrient cycling.

Improve water clarity.

Eliminate fishkills and improve fishery.

Reduce algae growth.

Not suspend bottom sedimentsguaranteed!

Aquatic Eco-Systems Lakes DepartmentWe are world leaders in lake management systems, having improved the quality of large bodies of water and aquatic ecosystems since 1978. Our 50+ years of field experience in pond and lake management includes a PhD Professional Engineer who leads a staff of highly trained biologists, technicians and specialists.

Count on lots of personal attention as we draw from our extensive resources to tackle all your lake and pond problems. Whether you need a large reservoir aeration system designed and quoted, assistance troubleshooting the backyard farm pond or simply an answer for an aquatic question, you're in qualified hands. We also stock a wide selection of equipment and can ship in-stock items the same day!

Our Lakes Department values relationships with every customer, giving all the high level of attention and service they deserve. Give us a call at 407-472-0520 to talk with a lakes technician.

GuaranteeWe will guarantee in writing that our aeration systems will keep the bottom dissolved oxygen above 5 mg/L, as mandated by the US Clean Water Act of 1972, when requested to do so. We do require accurate data on which to base our design and guarantee.

Our Lakes team (L to R): Gary Rogers, PhD, PE; Clarke DeWitt, Fountain Expert; Matt Rayl, Lakes Dept. Manager; Cullen Danner, Aeration Specialist; John Baylor, Aquatic

Weed Control Expert; Steve Jackson, Engineer.

Order Toll Free 877-347-4788Free Lake and Pond Help: 407-472-0520 Fax: 407-886-2387

Save $ 10.00Save $ 10.00When you purchase a 50-lb bag of GreenClean Pro algaecide (part # GC51-C).

Call the AES Lakes Department at 407-472-0520 and mention this coupon code: 10DOFF

Save $ 5.00Save $ 5.00With the purchase of 1 quart of Blue Vail dye (part # OWD5).Call the AES Lakes Department at 407-472-0520 and mention this coupon code: 5DOFFCoupon code valid one time for phone orders only.

Coupon code valid one time for phone orders only.

Aeration system design map.

Exp. 7/31/11Exp. 7/31/11

3Pond Construction

Pond SealantEffectively repair your leaking pond or reservoir with AquaBlok PondSeal, an all-natural sealant material. Just spread this bentonite-coated aggregate directly over the water's surface. Unlike with bagged bentonite, you won't have to worry about the major ity of the materials floating away as dust. PondSeal forms an erosion-resistant layer at the bottom of your pond. Apply at an approximate coverage rate of 5 lbs per square foot in as uniform of a layer as possible. If you know the area where the leak is occurring, it can also be applied in a targeted area. Can be combined with dry pest repellents and placed in burrow holes as a sealant and deterrent for animals that may be causing leaks. Sold by the pallet only (48 bags, 50 lbs each) and ships direct from factory. Made in USA.

APS5048

80% of all future management issues could have been prevented during the pond construction phase.

Anti-Seep CollarOur 2' x 2' Anti-Seep Collar will prevent the all too- common washout of underground pipes in levees. It has a solid wood frame with Neoprene rubber center. To use, simply cut a hole in the rubber 25% smaller than the pipe size and slide it through. Use one every 30'. Weighs 7 lbs. Made in USA.

ASC2

WATER FLOW

Anti seep collars prevent the all-too-common washout of underground pipes in levees.

Fish HabitatEncourages fish propagation.The AquaCrib is the most functional, convenient and cost-effective means to date for encouraging sport fish propagation. Functions especially well in deep lakes, which often are lacking in protective vegetation. A durable shelter for fish through all life cycles, the AquaCrib encourages propagation of most inland-water species of fish. Hinged top panel allows replacement of brush, keeping the AquaCrib functional indefinitely. Weighted with concrete block. Made of recycled HDPE, corrugated plastic and measures 60" L x 48" W x 48" H (153 cm x 122 cm x 122 cm). Weighs 30 lbs.

The AquaCrib is the only fish habitat chosen by the Bureau of Fish Management of the Wisconsin Department of Natural Resources after three years of in-depth study. Its innovative design has since been patented (#5,042,424).AC

Time-tested value, made of recycled materials.

Adding a habitat to your pond makes great shelter for your fish.

Linear Polyethylene Liners for Large Ponds These heavy-duty pond liners offer superior strength as well as puncture and tear resistance at an excellent price. This is the liner we selected for our 2-acre fire pond here at AES. They are resistant to most chemicals, salt and acids. The material will remain flexible at -70F. Available in width increments of 10 feet and any length up to 50,000 square feet as one piece. Panels are accordion-folded every 4 to 5 feet and tightly rolled on a heavy core for ease of handling and instal lation. Sold by the square foot (2,500 ft2 minimum). Allow 20 days for production. Ships from factory. Call for pricing.

Ship Wt per Maximum 1,000 ft 2 Panel SizePE20 20 mil 100 lbs 50,000PE30 30 mil 150 lbs 33,000PE40 40 mil 200 lbs 25,000

During excavation, consider installing a pond liner or spread a bentonite based product to protect against highly acidic or leaky soil composition.

Grass Carp GuardOur Grass Carp Guards are made of 1/4" diameter powder-coated steel bars for super strength and durability. They are designed to mount in the appropriate pipe size to keep your fish in and prevent the clogging of drains. The bottom tangs may be bent for the desired fit. Made in USA.

BG4 4" BG6 6"BG8 8" BG10 10"BG12 12" BG18 18"

Don't let your investment swim away! Keep your investment carp in your pond with a grass carp guard on your in-and-out flow pipes.

Grass Carp

Bright Dyes Fluorescent water tracing dyes.

NSF certified for use in potable water.

Ecologically safe dyes for use in stream tracing, lake studies, flow mapping, storm and sewer analysis, pollution studies and leak detection. Two formulations: FWT Red, a specially formulated version of the dye Rhodamine WT; and FLT Yellow/Green, a formulated version of the dye Fluorescein. The fluorescent colors can be detected visually in most water conditions or with the use of ultraviolet light or a fluorometer. The dyes are temporary and will degrade naturally in sunlight (23 days for Red and 57 days for Yellow/Green) or with the addition of chlorine. Yellow/Green is resistant to absorption in organic matter and should be used in water with heavy sediment loads. 1 pint per 10,000 gallons.

102003 FWT Red, 1.25-oz Cake106023 FWT Red, Pint Liquid106253 FWT Red, Gallon Liquid106001 FLT Y/G, Pint Liquid108001 FLT Y/G, Gallon Liquid

108001102003

106001

4What is Lake Stratification?

Benefits of Lake Aeration

Without AerationFloating scum of decaying algae.

Thin layer of water with oxygen suitable for fish life.

Dead water. No living fish or animal life.

Septic water. No oxygen. Loaded with toxic gases from decaying animal matter.

Black anaerobic sludgeDecaying septic sludge of decomposing fish, animals, plants, fertilizer, fish food.

Dead algae, fish, insects and food to settle to bottom.

Fish try to catch food on its way to bottom.

Blue-green algae bloom shuts out sunlight, excretes toxins.

With Aeration

Benthic organisms feed on fish and water fowl droppings, dead leaves and other

plant and animal matter.

Fish feed on benthic organisms; they are healthier from natural

foods, abundant oxygen, lack of toxins and of disease organisms.

Oxygen enables benthic organisms and fish to live on bottom.

Artificial circulation removes toxic gases from bottom water.

Lake DestratificationWhat is stratification?The laws of physics tell us that colder water is heavier than warm water. So it makes sense that colder water is on the bottom and warmer water is on the surface. In fact, it only takes a 3-degree difference for distinct separation (thermocline) to form. When this separation, or layering, occurs it is called stratification.

Is stratification harmful? Yes.In a stratified pond the cooler, denser water on the bottom does not mix with the surface water where the oxygen is. It is also too dark to allow photosynthesis. Most of the oxygen-consuming organics have settled to the bottom. A short time after stratification forms, the cooler water below the thermocline becomes devoid of oxygen. To make things worse, the loss of oxygen starts a series of detrimental events: carbon dioxide builds up, making the water more acidic. The lack of oxygen changes the decomposers from aerobic to anaerobic. The resulting byproducts are black muck and hydrogen sulfide, which is toxic to fish and smells like rotten eggs. Anaerobic conditions on the bottom also cause the release of phosphorus from the sediments, feeding more algae in the surface waters.

If your water quality and fish are important, then stratification should be avoided.

What is turnover?Most ponds and lakes become stratified when the warm water on top separates from the cooler water on the bottom. The deeper water becomes toxic because it cannot obtain oxygen. When a cold front hits, it cools the water in the top stratum. This causes rapid mixing, which brings the toxic water to the surface. The toxins can kill the zooplankton and fish, taking up even more oxygen. Fish stressed by the change in pH and toxins are now forced to struggle with low oxygen. Depending on the severity of the turnover, fish may start dying. Usually, the oldest fish die first.

What are the benefits of a uniform distribution of dissolved oxygen throughout the water column?Nutrient ReductionLake sediment is where nutrients are most affected by aeration.

According to G. Dennis Cooke et al. in Restoration and Management of Lakes and Reservoirs, "Depletion of oxygen in the hypolimnia of eutropic lakes is one of the first signs of eutrophication. If enrichment becomes sufficient to exhaust all or a substantial portion of the hypolimnetic oxygen reserve before autumn destratification occurs, anoxia will result. Anoxia can produce several undesirable changes in lake quality, including accelerated internal recycling of nutrients (and) solubilization of metals" (403).

These undesirable results happen when the sediment-water interface changes from an oxidized to a reduced state.

Adding oxygen below the hypolimnia or mixing it throughout the water column via destratification systems can prevent these changes. Aerating to the sediment-water interface maintains biological activity and chemical binding (specifically between the iron and the phosphate), which decreases soluble nutrients.

Helping zooplankton Zooplankton benefits lakes and ponds by keeping phytoplankton populations down, improving fish populations and acting as an environmental indicator.

Improving water quality and eliminating the anaerobic hypolimnia allows an increase of aerobic habitat in which zooplankton can find refuge. The increase in volume of quality water increases populations of zooplankton. A prime example of this occurred when Daphnia pulex numbers in Hemlock Lake (Livingston County, New York) increased nearly 90 times following hypolimnetic aeration (Cooke et al. 412).

The limited mobility of benthic organisms generally inhibits them from avoiding poor ecological conditions. In turn, this makes them accurate indicators of local environmental conditions (Weisberg et al. 149).

The Shannon Weiner Diversity Indexwhich is used by many statesis used to quantify the diversity of benthic organisms. When put in correlation with dissolved oxygen, it shows that oxygen is a primary indicator in benthic diversity. As the oxygen is depleted in the area of the sediments, benthic organism variety decreases.

Destratification system hard at work at a golf resort in Orlando, FL.

If I live on a large lake, can I just aerate my backyard portion?In most cases, this would not have a beneficial effect on the lake in total. If a diffuser were placed above the thermocline, it would induce circulation and act as an artificial structure that would be a fish attracter. If the diffuser were below the thermocline, it would be lifting some of the coolest, heaviest, worst quality water and putting it on the surface in front of your property. For aeration to be effective in the overall water quality improvement of the lake, it has to be designed for the entire lake or a hypolimnetically isolated portion of the lake.

5Large Lake and Reservoir SystemsWe have everything needed for a complete solution.The Great Lakes Synergistic Airlift Technique employs oilless air compressors with the appropriate accessories, including protective cabinets, mufflers, soundproofing, tubing, couplers and clamps as well as super efficient air diffuser assemblies.

Chern Ching ReservoirThe 45-year-old, man-made reservoir was highly eutrophic. Dissolved oxygen levels were typically less than 1 ppm at the bottom and ORP values above the sediment layer (in some places up to 13 feet thick!) were -400 mV.

The Taiwan Water Authority used two main criteria for judging the success of the operation: the D.O. levels measured at 4 inches above the sediment layer would have to be at least 4 ppm and the ORP values at any location would have to be greater than 0.

The Great Lakes Aeration System brought rapid improvement that exceeded their criteria. The Taiwan Water Authority declared the operation a success on all accounts, including a significant improvement in water clarity. The cost of treating the reservoir's water (to make it drinkable) was significantly reduced.

Lake Study: Park Lake

Park LakeA 10-acre lake, located in Orlando, Florida, was plagued with some of the poorest water quality in the area. The lake generated many complaints involving hydrilla, algae blooms, low dissolved oxygen, high nutrient levels and fishkills. The herbicides that were used offered some relief of the blooms but were an expensive, ongoing cost.

The urban run-off added nutrients to the 24-foot deep lake, and internal nutrient cycling compounded the problem. The lake remained stratified (stratification occurs when a layer of warmer, less dense water settles on top of cooler, denser water). When this occurs, the lower water cannot exchange gases. Oxygen becomes depleted and toxic gases, such as ammonia, carbon dioxide and hydrogen sulfide, accumulate. Most of the lake's bottom remained devoid of organisms. Without the mussels, snails, aerobic bacteria and other organisms that feed on the detritus, the lake's water quality could only get worse. Nutrient levels would increase from the internal nutrient cycling.

The City of Orlando installed an aeration system designed to aerate the lake by turning over the water every six days. Within weeks, dissolved oxygen levels in the lake increased and the toxic gases dispersed. Phosphorus and other nutrient levels decreased and water quality improved. Within one year, the lake supported largemouth bass and hundreds of waterfowl. The diversity and quantity of other species increased. The ability of the lake to assimilate nutrients into the food web has been vastly improved. Park Lake is now considered a jewel to the city and the surrounding neighborhood and to have some of the best water quality in this city of 90 lakes. Over the years, the City of Orlando has purchased thirty additional systems for other city lakes.

24

21

18

Dep

th (f

eet)

15

12

9

6

3

0Jul Aug Sep Oct Nov Dec Aug Sep Oct Nov DecJan Feb Mar Apr May Jun Jul

Water Clarity (Secchi Depth)

18

mg/

L

15

12

9

6

3


Ammonia (Nitrogen)

1.6

1.4

1.2

mg/

L

1.0

0.8

0.6

0.4

0.2


Phosphorus

Total Phosphorous

Ortho Phosphorous

28

24

mg/

L

20

16

12

8

4


Carbon Dioxide & Dissolved Oxygen

Carbon Dioxide

Dissolved Oxygen

Case Studies

6Great Lakes Systems

6

8 Feet of Heat-Dissipating Hose Included

Sound-Reducing FoamPressure Relief Valve Included

Louvered Design Allows for Optimal Air Flow

Hinged Cover for Easy Access

Open Top Cabinet Design Allows for Easy Maintenance

Efficient, Reliable Rocking Piston Compressor

High-Flow, Noise-Reducing Air Filter

Rubber Shock Mounts Reduce Vibration

High-Flow, 105-cfm Cooling Fan

up to 11/2 acres, 1520' deepup to 1 acre, 1215' deepup to 1/2 acre, 912' deep

up to 1/4 acre, 59' deepup to 1/8 acre, 35' deep

up to 3 acres, 1520' deepup to 2 acres, 1215' deepup to 1 acre, 912' deep

up to 1/2 acre, 59' deepup to 1/4 acre, 35' deep

Great Lakes Aeration SystemsOur Great Lakes Aeration Systems are complete and ready-to-go packages that include everything you need: lockable heavy-duty aluminum cabinet, efficient rocking piston air compressor and synergistic diffuser manifolds. DA1B and DA2B come with 4-diffuser manifold (DA2B includes two) and unweighted or easy-to-install weighted tubing (see item descriptions below for which is included). Also available is the DA3B aeration system, which provides extra air in larger, deeper impoundments. In keeping with the benefits of the original systems, the DA3B is install-ready with all-weather cabinet, rocking piston air compressor and larger 6-diffuser manifold. Weighted 5/8" tubing (WD1R, required for DA3B) is sold separately.

Great Lakes systems with self-weighted tubing do not require bricks or ties and install much easier and faster than systems with unweighted tubing. To keep from bringing electricity to the lake, the compressor can be located up to 1,000' away with additional P200S tubing.

The sound-reducing, ventilated, weatherproof, heavy-duty cabinet is easily installed on a post, pier or boathouse. Instructions are included, and the entire unit can be shipped Ground. 115V/60 Hz. 230V systems require longer lead time.

DA1B System Cabinet Unweighted Weighted Ship Wt Tubing (100') Tubing (100') (lbs)DA1B P P 45+12DA1BW P P 59+12DA1BWNC P 38+12DA1BNC P 24+12DA1BNT P 39+12 DA2B System

Cabinet Unweighted Weighted Ship Wt Tubing (200') Tubing (200') (lbs)DA2B P P 56+12+12DA2BW P P 85+12+12DA2BWNC P 63+12+12DA2BNC P 35+12+12DA2BNT P 44+12+12

7Great Lakes Systems

7

AccessoriesWD2R 50' 3/8" Weighted Air TubingWD2R-100 100' 3/8" Weighted Air TubingWD1R 50' 5/8" Weighted Air TubingP200S 100' 1/2" Unweighted Air Tubing62071 3/8" x 3/8" Adapter, Barb x Barb62072 1/2" x 1/2" Adapter, Barb x BarbzB3858 3/8" x 5/8" Brass Adapter, Barb x BarbDFAN Replacement Cooling FanALR15mB Replacement DiffuserALR23mB 9" Repl. DiffuserAB300B Replacement Air FilterDA1B-RK DA1B Compressor Repair KitDA2B-RK DA2B Compressor Repair KitDA3B-RK DA3B Compressor Repair KitDABASE Ground Mount w/24" x 24" Pad

WD2R-100

DFANALR15MB

DA3B System Cabinet Ship Wt (lbs)DA3B P 52+15DA3BNC 31+15DA3B-230* P 52+15DA3BNC-230* 31+15*230V models have additional lead time.

up to 4 acres, 1820' deepup to 31/2 acres, 1518' deepup to 21/2 acres, 1215' deep

up to 11/2 acres, 912' deepup to 3/4 acre, 59' deep

Cabinet shown on DABASE.

Close-Up of Lock

DPX200

Handheld Depth Finder see page 34.

88

Great Lakes Shallow Lakes Systems

Great Lakes Aeration Systems The Great Lakes aeration/destratification system is guaranteed to be the lowest cost method of inducing circulation to remove stratification, add oxygen and deliver the many benefits that result from sufficient bottom oxygen. These systems feature Sweetwater unconfined synergistic airlift (USA) diffusers that have proven their effectiveness in over 250,000 acres of lakes worldwide. Install a Great Lakes system and be confident that you have the most efficient and effective system available. We have more experience than anybody. For system sizing see the Average Sizing Guides below, then contact us to double-check before ordering. One-year warranty. Installation available.

For shallow lakes:Systems come factory wired for either 115V or 230V single-phase (add "-230" after part number for 230V). Three-phase models, not wired, are also available. Great Lakes systems feature Sweetwater oilless rotary vane compressors that include a muffler, inlet check valve, control valves, 030 psi liquid-filled pressure gauge and pressure relief valve. Our shallow lake systems, which use the ALA4GLB diffuser manifold(s), are recommended when the majority of the lake is 4 to 8 feet deep. Tubing is not included; we recommend P200 polyethylene tubing on the land and WD1 weighted tubing underwater. Maintenance kits include four sacrificial carbon vanes, gasket and two inlet filter elements.

Ship WtSL3mK Maintenance Kit for 1/4-hp System 2 lbsSL5mK Maintenance Kit for 3/4-hp System 2 lbsSL9mK Maintenance Kit for 1-hp System 2 lbsN516 Nut Driver (Fits All Clamps)

Note: Maintenance kits include four sacrificial carbon vanes, gasket and two inlet filter elements.

Powered by

Ship Wt4GL54 3/4-hp Aeration System + 4 Diffusers w/Cabinet 150 lbs4GL54NC Same, w/o Cabinet 90 lbs

up to 1 acre,46' deep

up to 2 acres, 69' deepup to 3 acres, 912' deep

up to 4 acres, 1215' deep4GL54



up to 21/2 acres, 69' deep

up to 11/2 acres,46' deep

4GL75


up to 2 acres, 1215' deep

up to 11/2 acres, 912' deep

up to 1 acre, 69' deep

up to 1/2 acre,46' deep

4GL32

Ship Wt4GL96 1-hp Aeration System + 6 Diffusers w/Cabinet 165 lbs4GL96NC Same, w/o Cabinet 105 lbs


up to 3 acres, 1215' deepup to 2 acres, 912' deepup to 11/2 acres, 69' dee

p

up to 3/4 acre,46' deep


up to 5 acres, 912' deepup to 31/2 acres, 69' dee

p

up to 2 acres,46' deep

4GL53 4GL96

Ship WtSL9 1-hp Aeration System + 4 Diffusers w/Cabinet 150 lbsSL9NC Same, w/o Cabinet 90 lbs

Ship WtSL5 3/4-hp Aeration System + 2 Diffusers w/Cabinet 140 lbsSL5NC Same, w/o Cabinet 80 lbs


up to 8 acres, 1520' deepup to 6 acres, 1215' dee

p





SL5 SL9

For deep lakes:Compressors are factory wired for either 115V or 230V single-phase (add "-230" after part number for 230V). Three-phase models, not wired, are also available. Deep lake systems use our ALA6GLB diffuser manifold(s) intended for lakes deeper than 8'. The compressors can be mounted in an optional vandalproof, lockable cabinet. The cabinet is made of 1/8" thick galvanized steel and powder-coated avocado green to blend into the landscape. Cabinets include built-in cooling fan(s), lock(s) and soundproofing that keeps the noise level below 55 dB (normal conversation) at 10' and virtually inaudible at 50'. Cabinets come mounted on a lightweight equipment pad that is suitable for private installations. The cabinet can be bolted to a concrete base (for public installations). Tubing sold separately due to the variation in lake sizes.

Choose either a 100' (P200S) or 400' (P200) roll of unweighted tubing on land. If used in the water, the unweighted tubing requires tie wraps (T120R) and three-hole bricks (purchased locally) attached every 58' for weight. Self-weighted tubing (WD1) takes much less time to install and eliminates the bricks and tie wraps. Both types of tubing can be connected using couplings (101A) and clamps (use SSA for P200 tubing and SSB for WD1 tubing). One coupling and two clamps per connection will be needed. Cabinets can be located a long distance from the lake shore (call and ask us for guidance or see the friction loss chart with HeavySet tubing).

Ship WtSL7 3/4-hp Aeration System + 3 Diffusers w/Cabinet 142 lbsSL7NC Same, w/o Cabinet 82 lbs

Ship WtSL3 1/4-hp Aeration System + Diffusers w/Cabinet 120 lbsSL3NC Same, w/o Cabinet 60 lbs




up to 1 acre,810' deep

SL3SL7


up to 9 acres, 1215' deepup to 7 acres, 1012' dee

p


The boil from an installed aeration system.

9

Great Lakes Deep Lakes Systems

9

10

Custom Aeration Systems

Select the right type of aerator for the application. An aerator's standard aeration efficiency (SAE) is an important consideration when comparing one aerator with another.

The SAE can be calculated by measuring the aerator's oxygen transfer and the amount of energy used per horsepower, per hour, under standard conditions. An SAE of 2.1, for example, means that 2.1 pounds of oxygen per horsepower, per hour, are transferred to the water under standard conditions. The higher the SAE, the higher the oxygen transfer, the higher the efficiency.

However, SAE numbers are a fair comparison only when comparing aeration equipment of the same exact type. You cannot use the SAE as your only tool in the selection of an aeration system. Before looking at the SAE numbers, choose the right type aerator or oxygenator for the job.

Based on your conditions and goals, choose the right aerator for your pond.

Surface Aerators (SAE 2.9):

Volume of water is small compared to a high stocking density, such as in a commercial fish-farming pond.

Fish are gasping for air at the surface and you must quickly raise the oxygen level in a small area. However, it will not be a good choice for full-time aeration because it will not disperse oxygen throughout the pond.

Portable aerator that can easily be connected to a gas powered generator and used in emergency scenarios to prevent fishkills.

NOT for use in ponds where getting oxygen to the bottom is critical and destratification is desired.

Destratification Aeration Systems (SAE 2.7):

For ponds more than 6' deep at the deepest point. Destratification systems completely circulate all the water in your pond, resulting in an even distribution of dissolved oxygen from top to bottom.

Reduced algae blooms, a larger fishery, increased biodiversity and muck & sludge reduction.

Best long-term management solution for pond maintenance.

Should NOT be used as an emergency aerator because it very quickly mixes the water. Its rate of oxygen transfer is excellent; however, it cannot raise the oxygen level of such a large volume quickly enough to avoid an imminent fishkill. It can actually aggravate the problem.

Fountains (no SAE rating):

Although great for adding to the aesthetics of any pond, fountains will not improve the health of the pond or increase the overall dissolved oxygen concentration.

Bottom-draw or Onshore fountains will circulate more of a pond's water volume than a traditional floating fountain.

Creates atmosphere and increases property value.

Choosing an Aerator: Efficiency versus Type

Custom aeration system in 130-acre lake in Lake County, FL. Bubble wall installed to deflect floating aquatic debris.

Custom Aeration SystemsIf one of our Great Lakes aeration systems doesn't match up with the size of your pond, we also offer custom aeration systems for all shapes and sizes. Regardless of surface acreage or depth, our biologists can design a system for your lake or pond. We carry an extensive line of compressors and diffusers to suit any pond or lake owner's needs. Call us today to find out how we can help you.

Should bottom aeration or surface aeration be used in a lake where trout are raised?Trout generally require water colder than 68F (20C). If the surface temperature of the lake in the summer does not rise above this temperature, then bottom aeration will work fine. If the surface temperature goes above 68 in the summer and the cold bottom layer of the lake does not have sufficient oxygen at the end of the summer to support the trout, then neither type of aeration would be applicable. Either a hypolimnetic aeration system or a pure oxygen system adding to the bottom strata only would have to be used (we can design both pure oxygen systems and hypolimnetic systems).

11

Diffusers

Diffuser ComparisonDiffuser Type Recommended cfm Inlet Fitting Ship Wt (lbs) Replacement Diffuser Application

ALP4 4 x 3" Medium-Pore 1.2 3/8" barb 3 ALR8m Koi Pond

ALA4GLB 4 x 6" Medium-Pore 1.52.4 5/8" barb 10 ALR15m Lakes

12

Diffuser Maintenance

Just as maintenance is important for your home and your car, your aeration system requires some upkeep. Your diffusers are constantly exposed to an organically rich environment and are going to have buildup. Unfortunately, they can't be expected to clean themselves. The good news: An annual inspection plan is all it takes for you to rest assured your system is running optimally.

Rubber diffuser membranes consist of many tiny holes that open as air passes through and close when airflow ceases. This process prevents water from entering the unit. However, when compressed air is introduced into water, as in aeration, calcium carbonate (CaCO3) forms a hard crust on the diffuser surface. The calcium buildup on these small openings forces the rubber to stretch in order to continue to diffuse air, leading to an inability to go back to its

original size for the rubber (called memory loss). This results in larger bubble size and a less efficient diffuser.

Glass-bonded silica diffusers may become infused with bacteria, other organics and mineral deposits such as calcium carbonate, causing unnecessary back pressure on the compressor or blower over time. If this back pressure persists, it can dramatically increase wear and tear and, in turn, shorten the life of the compressor.

Whether or not a diffuser is operating unobstructed is impossible to tell by simply looking at the bubble plume. It may be apparent if the rising bubbles are noticeably larger, but this is not always the case. There is only one way to be sure the diffusers are free of obstructionsremove them from the water and take a look. Whether you use glass-bonded silica or rubber membranes, it is imperative they are checked at least once a year to determine if cleaning is necessary. If needed, undiluted muriatic acid can be used for both kinds of dif fusers.

Diffuser maintenance

Nothing in life is maintenance-free.

The air diffusers used will determine the overall efficiency of a lake aeration/ destratification system. The two most common styles are the synergistic airlift assembly (developed by AES) and the rubber membrane diffuser. Each was designed for different tasks. The synergistic airlift assembly (SAM) is made to lif t a large volume of bottom water, thus removing stratification. The rubber membrane type (RM) was designed to aerate waste water.

Destratification is the most economical form of lake aeration. This is only accomplished by moving large volumes of water. SAMs were developed through extensive underwater flow testing to lift the maximum amount of water from above the diffuser to the surface of the lake with a minimum amount of air (8,000 pm/hp). This technique requires a specific spacing of the individual diffuser fingers to provide nonturbulent entrainment of the bottom water into the column of rising bubbles. For that reason, they must take on the odd shape of the ALA4GLB, 6GLB and 8GL diffuser manifolds. Each is optimized for a specific depth range.

The smaller ALA4GLB manifold is designed for shallow lakes from 4 to 8 feet in depth. These shallow depths cause short circuiting of the lifted water back to the diffuser, which limits their effectiveness. Therefore, more diffuser manifolds per surface acre of water are required than for a deeper lake of the same size.

The ALA6GLB diffuser manifolds are best used in water 8 to 40 feet deep. The deeper the water, however, the greater volume of air that needs to be used

by each diffuser. This is true for all diffusers. The ALA8GLB diffuser manifold is typically used in water deeper than 30 feet.

RM diffusers are not designed to lift water for destratification, so they are not recommended for lake aeration. If used for lake aeration, many more of them must be used to achieve the same result as a single synergistic airlift assembly.

When the rubber membrane diffusers are used in salt water or waste water, they may operate for as long as one year without excessive clogging. After that, remote cleaning can be accomplished by doubling or tripling the amount of air delivered to a diffuser. This will blow up the rubber, as in a balloon, dislodging the fouling matter. Wastewater treatment plants are designed for this, but it may be impractical for lake applications where there is only one compressor.

Sometimes, RM diffusers will tear, greatly reducing their oxygen transfer ability. If detected, retrieve the diffuser and replace the rubber membrane.

The ceramic diffusers used on SAMs should be inspected every three years in most cases. Clogging can be detected by recording the air pressure when new, then annually checking the pressure to see if it has increased. Diffusers can be cleaned by pouring muriatic acid into the air lines and turning on the compressor. The original pressure will be quickly restored and the small amount of acid will be diluted with no effect on the lake.

Lake Aeration Diffusers

All diffusers need maintenance, even ones with rubber membranes. To clean your diffusers, soak them in diluted muriatic acid.

Before

After

13

Tubing

HeavySet Weighted Air TubingOur HeavySet tubing remains on the bottom when filled with air. The dark blue color makes it easy to hide. Installation is fast, clean and neat. For long distances and large bodies of water use 3/4" or 1". Use 1/4" or 3/8" for smaller volumes of air, shorter distances or where line loss is not important. Compatible with 1/2" "nominal" insert f ittings and "shoreside" tubing. Requires clamps (or solvent weld the couplings). Call for large quantity discounts. Ships exposed. Made in USA.

I.D. WeightWD1 Per foot 5/8" 1 lbWD1R 50' Coil 5/8" 27 lbs+WD1R-100 100' Coil 5/8" 54 lbsWD2 Per foot 3/8" 1 lbWD2R 50' Coil 3/8" 10 lbsWD2R-100 100' Coil 3/8" 20 lbsWD3 Per foot 1/4" 1 lb WD3R 50' Coil 1/4" 6.5 lbsWD4 Per foot 3/4" 1 lbWD4R 50' Coil 3/4" 39 lbsWD5 Per foot 1" 2 lbsWD5R 50' Coil 1" 59 lbs101A Coupling, 5/8" for WD1, P200101B Coupling, 3/4" for WD4 SSA 1/2" SS Clamps for WD2, P250SSB 3/4" SS Clamps for WD1, P250SSC 1" SS Clamps for WD4 SSE 11/2" SS Clamps for WD5T120R Tie Wraps, 50/Pkg, 15" LongKT100 Tubing Cutter N516 5/16" Nut Driver for Clamps

WD1R

kT100SSB

101A 3/8" Air Friction Loss 5/8" Air Friction Loss

Cfm Distance Inches H2O Psi

1 100' 18 .63

1.5 100' 35 1.26

2 100' 57 2.06

3 100' 115 4.15

4 100' 190 6.85

5 100' 280 10.12

Cfm Distance Inches H2O Psi

2 100' 4 .63

3 100' 8 .29

4 100' 13 .47

5 100' 19 .70

6 100' 27 .96

8 100' 44 1.58

WD5WD3 WD1 WD4WD2 P200

1" I.D.111/16" O.D.

18 oz/ftUse SSE ClampsUse 101C Barb

1/4" Actual1/2" O.D.2 oz/ft

Use SSA ClampsUse 62069 Barb

5/8" I.D.11/8" O.D.

8 oz/ftUse SSB ClampsUse 101A Barb

3/4" I.D.17/16" O.D.

12 oz/ftUse SSC ClampsUse 101B Barb

3/8" Actual5/8" O.D.3 oz/ft

Use SSA ClampsUse 62071 Barb

5/8" I.D.1 oz/ft

Use SSA ClampsUse 101A Barb

Compressor Cabinets Soundproofing included with all cabinets.The most durable cabinets in the industry. These heavy steel cabinets are almost 1/8" thick and virtually vandalproof. They're equipped with cooling fan(s), soundproofing, electric receptacles, built-in locks and bottom outlet holes (air compressors and valve outlets not included). The sound level is typically below 55 dB at 10' and inaudible at 50'. Add "-230" for cabinets with 230V receptacles. CABS2 ships Ground, others ship by motor freight.

CABS2 Protects one compressor up to 1 hp with up to 6 diffusers. One cooling fan. 24" x 15" x 16" H. Weighs 70 lbs.

CABL Protects two vane compressors up to 1 hp each. 8 diffuser outlets. One cooling fan. 24" x 24" x 18" H. Weighs 105 lbs.

CABXL Protects up to four vane compressors up to 1 hp. 16 diffuser outlets. Three cooling fans. 44" x 24" x 22" H. Weighs 245 lbs.

Ship WtCABS2 24" x 15 x 16" H" Cabinet 70 lbsCABL 24" x 24" x 18" H Cabinet 120 lbsCABXL 44" x 24" x 22" H Cabinet 205 lbsCF1 115V, Replacement Fan 6 lbsCF2 230V, Replacement Fan 6 lbsCF3* 115V, Replacement Fan 4 lbsCF4* 230V, Replacement Fan 4 lbsPAD24 24" x 24" x 2" Equipment Pad 5 lbsPAD36 24" x 36" x 2" Equipment Pad 8 lbsPAD3648-3 36" x 48" x 3" Equipment Pad 10 lbs

*CF3 and CF4 are newer style fans sold from February 1996 on. Compare picture with your fan to ensure you order the correct style.

Weighted TubingThirty years ago, when the aeration industry was still wet behind the ears, system installations didn't go quite as smoothly as they do today. Terrestrial tubing was the only air line available, so bricks or cinder blocks had to be used as anchors. This created a dilemma during installationssome boats were loaded so heavy with bricks they sank!

One innovative man, tired of the hassles, decided to develop self-weighted tubing. His first attempt sank to the bottom just fine, but couldn't be unrolled unless temperatures were above 80Fit was so rigid that a couple feet of it could have doubled as a billy club. He used regrind material for his next go-round, but found that although it was flexible, its inherent impurities did not allow for consistent specs essential to calculating friction loss. Knowing the importance of consistency when properly sizing lake aeration systems, he determined that he had to use virgin, undistorted material for maximum precision and flexibility.

It worked, and a new standard was borna standard we respect to this day. Our weighted tubing is made from the purest material, reflecting the attention to detail that we put into all of our products.

CF1/CF2

CF3/CF4CABS2

CABL CABXL

14

Air Compressors

One of the largest lakes in the US to benefit from bottom-based aeration.

Aq201

Aq101

Rotary Vane Compressors, 1/4 to 1 hpSweetwater motor-mounted, oilless vane compressors are compact, easy-to-service and excellent for moderate-pressure, continuous-duty applications. They more than double the air output of reciprocating compressors with better longevity. Sacrificial oilless carbon vanes automatically adjust as they wear to maintain efficiency.

Thermal overload protection, air filter, inlet check valve and 8' power cord are included on single-phase units. Ten-psi models work to a water depth of 18 feet and 15-psi models work to 27 feet, depending on tubing diameter and distance.

The only wearing parts are carbon vanes, which can be replaced in about 15 minutes using common tools. In continuous operation, vanes last nine to 18 months, depending on operating pressure.

All Sweetwater compressors are performance tested before shipping and covered by a one-year warranty (not including air filters, vanes, water or lightning damage). Although all models can be rewired in the field, it's best if you specify your voltage when ordering, so we can supply the correct power cord (all single-phase models will be wired 115V if not specified). Check valves are recommended where air tubing can fill with water when the compressor is off.

Three-phase models ship with vanes removed and no power cords.All units include an inlet check valve with filter.

Aq5

Aq20Aq3-2

HP Phase Voltage Max PSI 5 PSI 10 PSI 15 PSI Ship Wt Vane 60 Hz / 50 Hz 60 Hz / 50 Hz 60 Hz / 50 Hz 60 Hz lbs SetAQ3-2 1/4 1 115-230 / 100-240 10 4.0/3.5 3.6/3.0 - 34 AQ3VAQ5 3/4 1 115-230 / 100-240 15 7.2/6.2 6.8/5.7 6.2 53 AQ5VAQ5-2* 3/4 1 115-230 / 100-240 15 7.5/6.0 6.8/5.5 6.2 58 AQ5VAQ7 3/4 1 115-230 / 100-240 10 9.5/7.8 8.8/7.6 - 53 AQ5VAQ73 3/4 3 208-440 / 208-440 10 9.5/7.8 8.8/7.6 - 60 AQ5VAQ9 1 1 115-230 / 100-240 10 11.8/10.2 10.1/8.8 - 62 AQ9VAQ93 1 3 208-440 / 208-440 10 11.8/10.2 10.1/8.8 - 62 AQ9VAQ21 11/2 1 230V, 60 Hz 8 19.5 - - 90 AQ2VAQ23 11/2 3 208/230/460, 60 Hz 8 19.5 - - 85 AQ2VAQ31-2 2 1 230V, 60 Hz 10 19.5 17.9 - 95 AQ2VAQ33 2 3 208/230/460, 60 Hz 10 19.5 17.9 - 90 AQ2VAQ61 5 1 208/220/440, 50/60Hz 10 53 50.5 - 175 AQ6VAQ63 5 3 208/220/440, 50/60Hz 10 53 50.5 - 155 AQ6V

Standard frequency in the US is 60 hz.*High-efficiency, energy-saving model.

Sweetwater Rocking Piston Air CompressorsSweetwater continuous-duty oil-free rocking piston air compressors are the highest performing piston compressors available. They are the perfect choice for aerating small ponds or deep water applications. They come equipped with noise reducing intake air filter, pressure relief valve, 6-foot power cord and thermal overload protection.

Model AQ101: 30-psi max duty continuous single 1/4" FNPT outlet, 4.4 FLA, 115V/60 Hz only. Model AQ201: 20-psi max duty continuous dual 1/4" FNPT outlet, 5.3 FLA, 115V/60 Hz only. Clean air filters quarterly and replace the piston cup and valves (included in repair kit) every two years. Optional outlet hose assembly is 2 feet long with brass 5/8" barb (compatible with 1/2" nominal tubing); two are required for the AQ201. One-year warranty on compressors. See DA1B or DA2B for complete pond aeration systems.

HP Phase Voltage @ 60 Hz Max PSI CFM @ 5 PSI CFM @ 10 PSI CFM @ 15 PSI CFM @ 20 PSI Ship Wt Repair KitAQ101 1/3 hp 1 115 20 1.85 1.7 1.4 1.6 19 lbs AQ101RKAQ201 1/3 hp 1 115 20 3.6 3.2 3 2.9 21 lbs AQ201RK-2AQ401 1/3 hp 1 115 / 230 20 4.75 4.6 4.5 4.2 17 lbs AQ401RK

15

Aeration Compressor Accessories

Make some memories by bringing the grandkids out to fish!

AM5PR-G

Aq16

Aq13

Aq14

Aq19

zBN54

LPG30

Aq3V (Vane sets include gaskets.)

Sweetwater Rotary Vane Compressor AccessoriesMiscellaneous PartsAQ3V Vane Set for AQ3 1 lbAQ5V Vane Set for AQ5, AQ7, AQ73 1 lbAQ9V Vane Set for AQ9 and AQ93 1 lbAB992B Vane Set for 0822, 0822HP, 1022 1 lbAF109C Vane Set for 0522 1 lbAQ11 End Cap, Felt Holder for All Quiet Models 1 lbAQ14 Filter Element, 1/41 hp Models 1 lbAQ255 Flushing Solvent, 16-oz Aerosol 1 lbAQ16 Muffler Assembly (Specify 1/4, 3/4 or 1 hp) 2 lbsAQ13 Pressure Relief, 3/4" NPT (1/42 hp) 1 lbAQ1301 Pressure Relief, 1" NPT (25 hp) 1 lbAQ13OR Replacement O-Ring for AQ13 AQ19 Inlet Check Valve, Installed (1/41 hp) 1 lbzBN54 Brass Male Adapter 1/2" NPT x 5/8" Barb 1 lb

GaugesBG15 Gauge, 15 psi 1 lbLPG30A Gauge, 30 psi, Liquid-Filled 1 lbBG61 Gauge, 60 psi 1 lb

Outlet Valve Assemblies*AOV1PR-G Single Outlet w/Pressure Relief 3 lbsAm2PR-G Two-Valve Outlet w/Pressure Relief 4 lbsAm3PR-G Three-Valve Outlet w/Pressure Relief 5 lbsAm4PR-G Four-Valve Outlet w/Pressure Relief 6 lbsAm5PR-G Five-Valve Outlet w/Pressure Relief 7 lbsAM6PR-G Six-Valve Outlet w/Pressure Relief 8 lbs*All include gauge.Brass hose barb adapters are supplied on all outlet assemblies, together with galvanized steel fittings and 2' of heat-resistant flexible hose, clamps and a hose barb fitting for 5/8" hose.

Rotating Tubing SpoolEasily uncoil your weighted tubing and power cable without tangles and knots. As you pull the tubing or cable, the heavy-duty turntable rotates and neatly uncoils the roll with little effort on your part. Great for installing an aeration system or fountain. Comes equipped with stabilizing legs to prevent falling over in sloped applications. Holds up to 100' of 5/8" weighted tubing or 200' of 3/8" weighted tubing.

VORTUG

Rotary Vane vs. Rocking Piston CompressorsThough both rotary vane and rocking piston compressors are used for lake and pond aeration, each has its own advantages when used in certain conditions. Think of a 300-hp Corvette compared to a 300-hp tractorthey're simply designed for different jobs.

Rotary VaneRotary vane compressors operate at low pressure but create high air volumes. They are best suited for multiple diffuser systems operating up to 15 psi, such as in shallow lakes with typical tubing lengths. The primary mechanism responsible for creating air pressure is a carbon vane spinning at a high speed inside a rotor. Because the vanes wear instead of the motor, rotary vanes typically experience long lives if properly maintained. Custom heat expansion bearings make the rotary vane the only compressor in the industry designed for aeration applications, allowing for continuous duty while stainless steel bolts resist corrosion from the elements.

Rocking PistonConversely, rocking piston compressors operate at high pressuresup to 30 psiand generate relatively low air volume. Deep lakes that require long tubing runs will typically use piston compressors. Because our compressors are customized to start under high backpressure during initial start-up or after a power outage, rocking piston pumps are designed for lake aeration. Running continuously, an operational life of 8 years is not uncommon if simple maintenance is followed; replacing a filter is usually all that's required.

16

Vane vs Piston Compressors

Compressor Comparison

Compressor Type Hp Phase Voltage 60/50 HzMax psi

5 psi 60/50 Hz

10 psi 60/50 Hz 15 psi 20 psi 25 psi 30 psi

Ship Wt (lbs)

Repair kit / Vane Set

FB109D Diaphragm 1/8 1 115V, 60 Hz 20 1.5 17 AF109RK

AQ101 Rocking Piston 1/3 1 115V, 60 Hz 20 1.85 1.8 1.7 1.6 19 AQ101RK

AQ201 Rocking Piston 1/3 1 115V, 60 Hz 20 3.6 3.2 3 2.9 21 AQ201RK-2

AQ401 Rocking Piston 1/3 1 115/230V, 60 Hz 20 4.75 4.6 4.5 4.2 17 AQ401RK

AQ501 Rocking Piston 1/3 1 115/230V, 60 Hz 30 4.4 4.2 4.1 4 3.9 3.8 17 AQ501RK

AQ3-2 Rotary Vane 1/4 1 115230V / 100240V 10 4.0/3.5 3.6/3.0 34 AQ3mK

AQ5 Rotary Vane 3/4 1 115230V / 100240V 15 7.2/6.2 6.8/5.7 6.2 53 AQ5mK

AQ5-2* Rotary Vane 3/4 1 115230V / 100240V 15 7.5/6.0 6.8/5.5 6.2 58 AQ5mK

AQ7 Rotary Vane 3/4 1 115230V / 100240V 10 9.5/7.8 8.8/7.6 53 AQ5mK

AQ73 Rotary Vane 3/4 3 208440V / 208440V 10 9.5/7.8 8.8/7.6 60 AQ5mK

AQ9 Rotary Vane 1 1 115230V / 100240V 10 11.8/10.2 10.1/8.8 62 AQ9mK

AQ93 Rotary Vane 1 3 208440V / 208440V 10 11.8/10.2 10.1/8.8 62 AQ9mK

AQ21 Rotary Vane 11/2 1 230V, 60 Hz 8 19.5 90 AQ2V

AQ23 Rotary Vane 11/2 3 208/230/460V, 60 Hz 8 19.5 85 AQ2V

AQ31-2 Rotary Vane 2 1 230V, 60 Hz 10 19.5 17.9 95 AQ2V

AQ33 Rotary Vane 2 3 208/230/460V, 60 Hz 10 19.5 17.9 90 AQ2V

AQ61 Rotary Vane 5 1 208/230/460V, 50/60 Hz 10 53 50.5 175 AQ6V

AQ63 Rotary Vane 5 3 208/230/460V, 50/60 Hz 10 53 50.5 155 AQ6V

Standard frequency in the US is 60 Hz. *High-efficiency, energy-saving model.

5

10

15

0

20

25

35

30

Free Air Flow (cfm)

Piston CompressorsP

ress

ure

(psi

)

10 2 3 4 5 6

AQ

101

AQ

201

AQ

401

AQ

501 2

4

6

0

8

10

14

16

12

Free Air Flow (cfm)

Rotary Vane Compressors

Pre

ssur

e (p

si)

50 10 15 20 25 30

AQ

3-2

AQ

5A

Q7

AQ

9 AQ31-2

17

De-Icing

Most of us are aware that aeration systems are primarily required in summer, when the oxygen consumption rate is highest and stratification is most severe. In some lakes and ponds, winter fishkills are also quite common.

When ice covers a lake, oxygen transfer from the atmosphere is eliminated. If there is a signif icant accumulation of snow on top of the ice, the photosynthetic oxygen production can also be virtually eliminated. If the ice and snow cover persists long enough and the oxygen consumption rate underneath the ice is great enough, there will be a fishkill. Clean lakes, that is, those with a low trophic state index, may not require winter aeration.

During the summer, thermal stratification occurs when warmer water floats above cooler, heavier water. Near freezing, the situation is reversed. As water approaches the freezing point, it expands and floats on top of warmer water.

The oxygen consumption that takes place in a lake is the result of biological and chemical reactions. Since the rate of these reactions is related to temperature, the winter aeration system needs to be only about 20% of the size of a summer aeration system.

If it is acceptable to have an open hole in the ice, the simplest way to prevent a winter fishkill is to keep a small area ice free, either by using air or an electric de-icer. The electric de-icer may work best at the shoreline, perhaps mounted on a dock, while air-powered systems seem to be preferred where longer distances are involved.

When the air compressor is mounted on the shore, the air line is buried below the frost line into the lake and directed to the area that is to remain ice-free. Caution must be taken due to the hazards of open water in the winter, where people or animals may be on the ice. Also, be careful not to open too large a hole in the ice, which can result in the loss of too much of the lake's heat.

Experience is necessary when designing de-icing systems, so we recommend asking for assistance.

De-Icing Lakes

De-IcersKasco de-icers are designed to be suspended from a dock or boat. They may also be attached to an optional horizontal float or universal dock mount (sold separately). Mounted in either a vertical or horizontal position, the de-icer circulates water to the surface, causing turbulence that reduces or eliminates ice formation. The motor assembly is sealed in an oil bath for long life and has ball bearings that provide smooth operation. The guard and motor case are made of stainless steel. The 1/2-hp model keeps a 3050' diameter area from freezing, the 3/4-hp model keeps a 5075' diameter area from freezing. Each unit includes a motor, propeller, 20' of suspension rope, guard assembly, zinc anode and 25' of low-temperature-rated power cable. ETL-approved to UL standards. Two-year warranty.

Options:Universal Dock Mount: Dock mount kit allows the de-icer to be mounted in a vertical position or several other angles. The de-icer can be adjusted to a maximum of 10' away from the mounting bracket.

C20 Timer/Thermostat Control: Designed for outdoor use, controls how long the de-icer will operate when temperatures demand. One C20 controller will control one de-icer.

D100 1/2-hp De-Icer, 115V 26 lbsD101 3/4-hp De-Icer, 115V 36 lbsD102-50 3/4-hp De-Icer, 230V 50' Cord 36 lbsC20 Control Unit 3 lbsKD Universal Dock Mount 22 lbsT10 Twist Lock Electric Plug, 30 A 1 lbWD0 De-Icer Tubing, Weighted 48 lbs/200'

Dock mount kit (KD) with D100.

Attach D100 to your dock and de-ice a 75-ft diameter area.

D100

Great Lakes De-Icing System

Looking for a low-cost de-icing system for a pond or lake? Here it is! This aerator will do a fine job keeping water open. The heart of the aerator is the reliable Sweetwater compressor, which uses only 253 watts at 115V. The compressor is mounted in a cabinet with an exhaust fan to provide cool compressor operation. Air is delivered from the shore-mounted compressor to the air diffuser assembly. This is done via 100' of HeavySet self-weighted tubing (included) to ensure that the tubing and the diffuser assembly stay securely on the bottom (HeavySet tubing does not contain lead or other metals).

The special de-icing diffuser assembly (AD11GL) is a 10" diameter flexible membrane that moves less water than the ALA4GLb diffuser and is ideal for de-icing applications. The diffuser is mounted on a weighted plastic support. To prevent any possible bottom erosion and to give the assembly a stable platform, a 24" x 24" polyethylene underlay is included. Weighs 63 lbs. One-year warranty on all parts, five-year warranty on diffuser. LPA3-2

Note: If used for summer aeration/destratification, switch to an ALA4GLb diffuser assembly (not included).

WD2R-100

AD11GL

Suitable for ponds from 1/4 to 5 acres. Call for placement suggestions.

C20

18

Solar Power

Solar Energy SystemsLooking for an inexpensive and environmentally friendly way to power your lake equipment? Go green and essentially eliminate your monthly operating costs using solar energy. Our solar power energy stations include everything you need to save electricity and lower your electric bill. Each system includes solar panels, batteries, controllers and weatherproof enclosures. They're fully customizable and let you operate our compressors, destratification systems, water pumps, circulation systems and DC lighting using only the power of the sun.

Solar energy can even power your waterfall. A destratification system in action.

This simple setup can save you thousands of dollars a year.

An efficient air pump (DC1240) will run your aeration system on solar power.

Small fountains are ideal for solar power. Accentuate your water features with minimal operational cost.

19

Windmill Aeration

Aeration WindmillsNo wiring needed.An aeration windmill can effectively aerate up to a one-acre pond (15' deep) with as little as a 5 mph wind! As the blade spins, air is compressed in the direct drive diaphragm compressor and forced through a 3/8" air line down to the diffuser on the pond bottom (40' maximum depth). Automatic overspeed protection is standard.

The FAW12 galvanized steel windmill package includes a 12' H x 6' W base (16' H and 20' H models also available), mounted diaphragm compressor, 12-blade 65" diameter rotor, 100' air line, diffuser assembly and complete instructions. The freeze control option with 2-gallon tank (FAW1) helps to prevent air line freeze-up (ethanol, isopropyl alcohol are not included). Ships motor freight. One-year warranty.

Dimensions Ship WtFAW12 Windmill Pkg 12' H x 61" W 244 lbs*FAW16 Windmill Pkg 16' H x 79" W 276 lbs*FAW20 Windmill Pkg 20' H x 97" W 356 lbs*FAW1 Freeze Control 2-gallon Tank 6 lbs

*Ships in multiple boxes.

fAW12

Windmill Aeration Systems (compressor only)Aerate your pond naturally, without using electricity or fuel! Capable of aerating up to 3 acres with as little as 5-mph winds. With a 30-psi diaphragm compressor producing up to 4.5 cfm, these windmills blow away the competition. Multiple systems can be installed for larger bodies of water. One-piece hub assembly. These powder- coated models of fer great protection against rust damage and require little maintenance. Five-year warranty on compressor, three years on windmill parts. Made in USA.

Add to end of part number to choose color: green (-G), yellow (-Y), bronze (-bR), red (-R), white (-W) or blue (-bL).

Dimensions Ship WtPCW12 Powder-Coated 12' H x 100" W 196 lbsPCW16 Powder-Coated 16' H x 80" W 227 lbsPCW20 Powder-Coated 20' H x 631/2" W 256 lbs

Hybrid Windmill SystemA complete windmill aeration system that won't stop just because the wind does. Get everything you need to keep your pond aerated 24/7while using as little energy as possiblein one package. The windmill gives you efficient, environmentally friendly power whenever possible. When winds drop below 5 mph, the electric aeration system will automatically kick in, ensuring your pond will stay aerated. Includes galvanized windmill aeration system, lockable heavy-duty aluminum cabinet, electric rocking piston air compressor, WCb1 windmill control box and 100' polyethylene tubing. ALA4GLb diffuser manifold is sold separately.

Dimensions Ship WtHWS1-12 12' H x 100" W 245 lbsHWS1-16 16' H x 80" W 276 lbsHWS1-20 20' H x 631/2" W 305 lbsWD1R-100 5/8" Weighted Tubing 54 lbs

Windmill Control boxWindmills are a cheap, environmentally friendly way to power your aeration system, but what about when the wind stops blowing? Use this windmill control box in conjunction with your electric aeration system to take advantage of alternative energy and still have aeration 24 hours a day. If the wind stops blowing, the box's air pressure sensor system turns on your electric aeration system. When the wind picks back up, the box shuts your electric system back off.

Easy to installjust attach the "T" valve into your windmill air line, plug it in, and then plug your electric aerator into the control box.

15-second delay prevents over-cycling.

Save moneyboth the windmill and electric aerator are connected to the same air line.

One-year warranty on all parts and components.

WCb1

pCW20

hWS1-12

Note: ALA4GLb diffuser manifold sold separately.

20

Desert Rain Fountains

Whether you'd like to create a majestic new focal point for your lake or enhance its existing natural beauty, a floating fountain is the perfect solution. Desert Rain fountains are built to last using the finest materials and workmanship available.

Our fountains are available in three different operating system types. You determine which system is best suited for you based on your location and personal preferences. Spray shape can be customized by choosing from our assortment of 8 nozzles.

The Onshore is a Desert Rain exclusive. The system uses a shore-mounted pump with an intake located on the bottom of your pond, ensuring excellent circulation and aeration. With all electrical and moving parts on land, this fountain is safe and easy to maintain.

Onshore FountainsThe Onshore fountain system is a good choice for fishing lakes, brackish water or any body of water in need of both circulation and aeration. The pump is mounted on dry land close to the shoreline, allowing for easy installation and maintenance. The intake for the pump can be placed anywhere in the pond but is usually located at the deepest point. Water drawn from the bottom of the pond is then aerated as it is discharged through the fountain. No electricity is in the water unless the optional light kit is installed.

Onshore systems include a prewired control panel, dual compartment float, pump, your choice of 8 different display nozzles, mooring rope, stainless steel intake assembly with foot valve, 100' of fire hose for discharge and 25' of suction hose for intake.

Optional light kits are matched to fountain size. Light kits include stainless steel brackets, submersible cast bronze fixtures with clear lenses and 250- or 500-watt quartz lamps, 100' of power cable, timer, GFCI and photo cell controls are prewired into control panel if lights are ordered with the fountain.

Please specify your nozzle choice and desired cable/hose length when ordering.

Add nozzle suffix to part number for fountains (e.g., OSF1T). Lighting power cords are available in even 50' increments starting at 100 feet. Add the power cord length to the end of the part number (e.g., LK2250-150). Additional power cable for lights and additional suction and discharge hose also available.

Allow 1014 days for delivery. All fountains ship motor freight.

hp Amps @230VOSF1 1.5 (115/230V) 7OSF2 2 10.5OSF3 3 16.3LK2250-100 500-Watt Light Kit LK2500-100 1,000-Watt Light Kit LK4500-100 2,000-Watt Light Kit

Diagram of Onshore fountain system.

Intake

float

pumpflexible

hose

Rigid pipe

Valve

Control panel

Desert Rain Nozzles

Three-Tier (TT)

1 hp (10' H x 12' W), 2 hp (20' H x 15' W), 3 hp (30' H x 20' W)

3 hp 30'

2 hp 20'

1 hp 10'

Sky Cascade (SC)


3 hp 35'

2 hp 25'

1 hp 18'

21

Desert Rain Fountains

Traditional FountainsTraditional fountains include a prewired control panel, mooring rope, float system, display nozzle, submersible pump, stainless steel frame and 150' of PVC double-jacketed power cable.

Optional light kits are matched to fountain size. Light kits include stainless steel brackets, submersible cast bronze fixtures with clear lenses and 250- or 500-watt quartz lamps, 100' of power cable, timer and GFCI. Photo cell controls are prewired into control panel if lights are ordered with the fountain.

Five different nozzle options are available, and additional power cords for pumps and lights are also available in even 50' increments starting at 100 feet. Add nozzle suffix and power cord length to part number (e.g., TFF1SC-200).

Traditional fountains are made to order and require a 50% nonrefundable deposit and/or a signed purchase order with approved credit. Please allow 26 weeks for delivery. All fountains ship motor freight.

hp Amps@230VTFF1 1 7TFF2 2 10.5TFF3 3 16.3TLK2250-100 500-Watt Light KitTLK2500-100 1,000-Watt Light KitTLK4500-100 2,000-Watt Light Kit

The Traditional floating fountain is a stainless steel submersible pump mounted on the float frame. This system offers simple installation and the most display options.

Diagram of Traditional fountain system.

Intake

float

pump

Cord

Control panel

Desert Rain Nozzles

Direct Line FountainsThe Direct Line fountain is used on irrigation or fill lines and is a cost effective way to add an aesthetic improvement to your lake. There is no need for a control panel or electrical cable. Simply connect the supplied 2" hose to your existing pump's discharge. Install and anchor the float and nozzle assembly in your pond and enjoy the beauty of your new fountain.

Direct Line fountains include a dual compartment float, stainless steel hardware and nozzle holder, solid brass display nozzle of your choice, mooring rope and 100' of 2" fire hose. Add nozzle suffix to part number (e.g., DLF1SC).

These systems usually ship in 5 to 10 business days. All fountains ship motor freight.

Required flowDLF1 30130 gpm @ 510 psi

Diagram of Direct Line fountain system.

float

flexible hose

Irrigation or fill Line

Sky Cascade (SC) with optional light kit.

1 hp (13' H x 26 ' W), 2 hp (22' H x 36' W), 3 hp (40' H x 36' W)

Trumpet (T)

3 hp 40'

2 hp 22'

1 hp 13'

1 hp (8' H x 4 ' W), 2 hp (10' H x 6' W), 3 hp (15' H x 6' W)

Cascade (C)

3 hp 15'

1 hp 8'

2 hp 10'


Arch (A)

3 hp 26'

2 hp 22'

1 hp 18'

22

Specialty Fountains

Twins and TripsTwins and Trips fountains packages offer the flexibility to run multiple fountains off one pump. Twins incorporate two nozzle heads, while the Trips package can power up to three nozzles. You can use any combination of nozzles. Since these multinozzle packages use our Onshore fountain technology, all pump maintenance can be performed on dry land. Unless a light kit is incorporated, no electrical parts are installed in the pond. Due to the potential improvement in water quality and additional atmosphere that fountains provide, Twins and Trips fountains can even add value to your property.

Intake

UnderlayRigid pipe

pump

Control panel

Valve

float

flexible hose

Diagram of Twin Onshore fountain system.

OSf5TT

OSf5SRJ

Spray Ring/Spray JetCustomize your own fountain spray!This fountain gives you two individual nozzles for fully adjustable spray heights and widthsyou can make your own spray pattern. What better way to improve the look of your lake? Two separate discharge lines run off a single 5-hp pump located onshore, so maintenance is easy and safe. It even circulates water, helping to prevent algae growth in your lake or pond. OSF5SRJ

Display Spray hp V Nozzle Config. h WOSF5TT-TWIN 5 230 Three-Tier Twins 21' 16'OSF5C-TWIN 5 230 Cascade Twins 9' 5'OSF5SC-TWIN 5 230 Sky Cascade Twins 15' 3'OSF5TT-TRIP 5 230 Three-Tier Trips 15' 12'OSF5C-TRIP 5 230 Cascade Trips 7' 4'OSF5SC-TRIP 5 230 Sky Cascade Trips 10' 3'

All trips and twins fountains are fully adjustable since each nozzle runs on its own discharge line. A valve connects to each individual discharge line at the pump and can increase or decrease flow to each nozzle.

Intake

pump

Rigid pipe

Valve

Control panel

flexible hose

Diagram of Trip Onshore fountain system.

float

Underlay

23

Kasco Fountains

Floating Fountains These Kasco fountains are built for larger ponds and more decorative applications. Look under the pictures to see what nozzles are included with different models (except Cypress, which is 3/4-hp only). Fountains provide a full column of water 10' high x 10' in diameter when run with no nozzle. Each fountain includes float with screens, power control center with GFCI and three 50' mooring ropes. Colored bulbs available for light packages. Three-year warranty. Made in USA. ETL-approved to UL and CSA standards.

*Not included with 3/4-hp models. Voltage Running Amps Cord LengthKFJ751-100 3/4 hp 115 6.5 100'KFJ751-200 3/4 hp 115 6.5 200'KFJ752-100 3/4 hp 230 2.9 100'KFJ752-200 3/4 hp 230 2.9 200'KF202-100 2 hp 230 10 100'KF202-200 2 hp 230 10 200'KF303-100 3 hp 230 13.4 100'KF303-200 3 hp 230 13.4 200'KF505-100 5 hp 230 20 100'KF505-200 5 hp 230 20 200'L375 Light Kit for 3/4-hp, 230V Fountain, 100' Power Cord L3752 Light Kit for 2-hp Fountain, 100' Power Cord

Redwood2 hp (22' H x 7' W)3 hp (24' H x 8' W)5 hp (26' H x 8' W)

Linden3/4 hp (6' H x 18' W)2 hp (18' H x 30' W)3 hp (19' H x 35' W)5 hp (20' H x 35' W)

Birch2 hp (12' H x 11' W)

3 hp (14.5' H x 10' W)5 hp (14' H x 12' W)

Sequoia3/4 hp (7' H x 4' W)5 hp (21' H x 10' W)

Spruce2 hp (19' H x 10' W)3 hp (21' H x 13' W)5 hp (24' H x 15' W)

Willow3/4 hp (4.5' H x 15' W)2 hp (12.5' H x 28' W)3 hp (13' H x 35' W)5 hp (14' H x 36' W)

Low-Cost Aerating Fountains Kasco floating fountains offering very good quality at a low price and delivering an effective mix of aeration and display. These models have a V-shaped display. Include float with screening, power control center with GFCI protection and two 50' mooring ropes. Colored bulbs available for light packages. Two-year warranty.

Running Cord Voltage Amps Length Display DimensionsKFX501-50 1/2 hp 115 5.6 50' 5.5' H x 15' WKFX501-100 1/2 hp 115 5.6 100' 5' H x 15' WKFX751-50 3/4 hp 115 7.3 50' 6' H x 21' WKFX751-100 3/4 hp 115 7.3 100' 6' H x 21' WKFX752-50 3/4 hp 230 3.7 50' 6' H x 21' WKFX752-100 3/4 hp 230 3.7 100' 6' H x 21' W4400VX-100 1 hp 115 11.3 100' 8' H x 26' W4400VXH-100 1 hp 230 5.7 100' 8' H x 26' W8400VX-100 2 hp 230 11 100' 8' H x 32' W5100VX-100 5 hp 230 20 100' 9' H x 34' WL375 Light Kit for 3/4-hp, 230V Fountain, 100' Power Cord L3752 Light Kit for 2-hp Fountain, 100' Power Cord

fountains with optional light kits.

Juniper3/4 hp (3' H x 20' W)2 hp (8' H x 46' W)3 hp (9' H x 48' W)5 hp (10' H x 50' W)

Cypress3/4 hp (6' H x 16' W)

24

Aqua Control Fountains

Floating Fountains High flow at a low price. The Evolution series fountain is shipped fully assembled and includes CSA-listed controller with GFCI, timer and photo sensor, Tornado spray pattern, 100' mooring rope and two mooring stakes. 1/2 hp, 115V, 5.6 amps. Tornado pattern is 6' H x 15' D. Two-year warranty. Optional stainless steel LED light kits are .01 amps and include four lights.

EV650 Fountain w/50' CordEV6100 Fountain w/100' CordEV6175 Fountain w/175' CordEV6LED50 Light Kit w/50' CordEV6LED100 Light Kit w/100' Cord

Tornado

Arum fleur de LisCluster Arch

TiaraSpider & Arch Torrent (No Nozzle)

EV6LED175 Light Kit w/175' CordEV6ARU Arum Spray Nozzle, 6' H x 21' DEV6CLA Cluster Arch Spray Nozzle, 6' H x 16' DEV6FLE Fleur de Lis Spray Nozzle, 7' H x 18' DEV6SAR Spider & Arch Spray Nozzle, 6' H x 18' DEV6TIA Tiara Spray Nozzle, 6' H x 21' D EV6RED Repl. Lamp, RedEV6bLU Repl. Lamp, BlueEV6GRE Repl. Lamp, GreenEV6YEL Repl. Lamp, Yellow

25

Other Fountains

Fountain/AeratorUse this reliable fountain in areas where the appearance of the pond or lake is as important as the need for aeration. The pattern it produces is comparable to many of the larger fountains on the market, but it uses about half the electric power. The high-volume spray resists misting and icing and produces a spray 7' high by 18' in diameter. Includes solid bronze end bells and foam-filled ABS float. 60 Hz (50 Hz also available). One-year warranty. Made in USA.

Amps Ship WtPHF1b 1-hp Fountain, 115V, 50' Cord 8.2 45 + 30 lbsPHF1Cb 1-hp Fountain, 115V, 100' Cord 8.2 50 + 30 lbsPHF2b 1-hp Fountain, 230V, 50' Cord 4.1 45 + 30 lbsPHF2Cb 1-hp Fountain, 230V, 100' Cord 4.1 50 + 30 lbsbLF Replacement Float, Black

phf2CB

Shearwater bottom-Draw Surface Aeratorpulls water from as deep as 7 feet.The lowest oxygen levels are nearest the bottom. To aerate the entire pond with a surface aerator, you need the unique Bottom-Draw Surface Aerator. The standard unit draws water from a depth of over 3'. By simply connecting an optional extension tube, it can draw from 7'. It transfers gases more effectivelyincluding oxygen, hydrogen sulfide and carbon dioxidebecause it throws water higher and in smaller droplets than other surface aerators. A 50' power cord is standard. Add "L" after the part number for a 100' power cord (extra cost). You may also want to order a winter propeller if you plan to operate it in freezing weather. One-year warranty. Made in USA.

Running Amps Ship WtHS8 Aerator, 1/2 hp, 115V 7.5 50+4 lbsHS9 Aerator, 1/2 hp, 230V 3.5 50+4 lbsHS36 Extension Tube, 3' 30 lbs*HS38 Replacement Propeller (HS8-9), WinterHS37 Replacement Propeller (HS8-9), SummerHS8F Replacement Foam Float w/Plastic CoatingHS9F Replacement Foam Float

*Ships Oversize at 30-lb rate; actual weight is 20 lbs.

Shown during testing at an R&D facility.Standard models draw water from

a depth of over 3 feet.

hS8

Do fountains aerate?Of course, but they are not the most cost-effective way. Aeration systems are designed to aerate. Fountains are designed for appearances. Lake aeration systems like Great Lakes are located on the bottom of the lake and lift huge quantities of low-oxygen water from the bottom using a comparatively small amount of energy. They are the more cost-effective way of aerating lakes deeper than six feet. Traditional floating fountains aerate only the surface water near the fountain and only when the surface oxygen level is low. To achieve some of the benefits of destratification and aeration, locate the pump's intake near the bottom of the pond. Use a dissolved oxygen (D.O.) meter to measure bottom D.O. and when it drops below 5 mg/L operate the aerator/fountain, especially at night.

Our fountains are distinguished from our aerators by their intended function and aeration efficiency. The standard aeration efficiency SAE of a fountain is typically less than 1.5 lbs/kWh, whereas an aerator is more than 2.5 and a Great Lakes system can be as high as 10! This poor SAE of fountains is due to the wasted energy from throwing water much higher than is needed for aeration. However, a fountain can aerate, especially if used in a pond that is not too large, if the fountain draws its water from a deep depth and if it is operated at night.

how to ensure a long life for your fountain.The fountain needs two things to ensure long life: adequate electricity and adequate cooling. For prolonged pump and motor life (regardless of brand), an adequate level of electricity must be provided to the motor. There are two cardinal rules for floating fountains concerning electricity:

1. Calculate from TRUE SOURCE to the motor when figuring cable size. True source is typically the electric company's installed meter.

2. Use one continuous (NO SPLICING) PVC-jacketed electrical cable from motor to control panel.

All submersible pump motors are water-cooled. When you see that the fountain spray is shrinking, turn it off, as there is an obstruction of some kind that needs to be cleared. Some motors contain oil that requires periodic changes. Most manufacturers include ground fault circuit interruption (GFCI), surge protection and properly sized breakers to turn off the fountain when either electricity or cooling is inadequate. If not included, have your electrician take care of it.

Our fountains are distinguished from our aerators by their intended function and aeration efficiency. The standard aeration efficiency SAE of a fountain is typically less than 1.5 lbs/kWh, whereas an aerator is more than 2.5 and a Great Lakes system can be as high as 10! This poor SAE of fountains is due to the wasted energy from throwing water much higher than is needed for aeration. However, a fountain can aerate, especially if used in a pond that is not too large, if the fountain draws its water from a deep depth and if it is operated at night.

how to ensure a long life for your fountain.The fountain needs two things to ensure long life: adequate electricity and adequate cooling. For prolonged pump and motor life (regardless of brand), an adequate level of electricity must be provided to the motor. There are two cardinal rules for floating fountains concerning electricity:

Our fountains are distinguished from our aerators by their intended function and aeration efficiency. The standard aeration efficiency SAE of a fountain is typically less than 1.5 lbs/kWh, whereas an aerator is more than 2.5 and a Great Lakes system can be as high as 10! This poor SAE of fountains is due to the wasted energy from throwing water much higher than is needed for operated at night.

Floating Fountains

26

Small Pond Fountains/Circulators

Aqua Series Aerating Fountains Operate in as little as 14" of water.

1/4 hp, 3.19 SAE* rating; 1/2 hp, 2.04 SAE* rating. Two fountain patterns in one unit.

These floating aerating fountains are designed for beauty and aerating small, shallow ponds. The motors are made with marine-grade aluminum with a polyester coating for high corrosion resistance. Each aerator includes an oil-cooled motor (with thermal overload protection), float, power cable, two fountain nozzles (AquaGem and AquaBlast patterns), debris screen and mini power panel with GFCI and timer. ETL- and CE-listed.

Units are 115V/60 Hz (230V/50 Hz available on special order). The deluxe series includes the Fountain Glo low-voltage light settwo 12V, high-intensity MR16 halogen lights. Add a "D" to part number for deluxe units. Fountains have a two-year warranty, lights have a one-year warranty. Ship in 1 box. Made in USA.

Ship Wt (Standard/Deluxe) Amps20115 1/4 hp Aerator, 50-ft cord 49/74 lbs 3.921115 1/2 hp Aerator, 100-ft cord 49/74 lbs 5.5

*SAE is "Standard Aeration Efficiency."

1/4 hp AquaGem NozzleSpray height: 3 ft

Spray Diameter: 7 ftflowrate: 175 gpm

1/4 hp AquaBlast NozzleSpray height: 1.5 ftSpray Diameter: 4 ftflowrate: 210 gpm

1/2 hp AquaGem NozzleSpray height: 4 ft

Spray Diameter: 9.5 ftflowrate: 200 gpm

1/2 hp AquaBlast NozzleSpray height: 2 ft

Spray Diameter: 5.5 ftflowrate: 260 gpm

Decorative Fountain This 1/4-hp floating fountain includes five interchangeable nozzles and is a good choice for use in smaller ponds. The fountain includes a 50-ft waterproof power cord, two 15-ft mooring ropes and RC-15 timer box with photoeye and GFCI protection. The fountain is also available with an LED underwater light ring that includes a 50-ft waterproof power cord and low-voltage transformer. Fountain is 115V/60 Hz, draws 3.1 amps and has a minimum operating depth of 12". ETL-listed, one-year warranty. Shipping weight 35 lbs. Light kit is 8 lbs.

1400J Fountain Kit1400F Fountain Kit With LED Light Kit1401L Light Kit Only

Eagle's Nest (3.5' h x 10' W)

hawk's Nest (3' h x 7' W)

falcon (4' h x 4' W)

Osprey (3.5' h x 7' W) With Lights

Condor (Inner Tier: 4' h x 4' W; Outer Tier: 2' h x 10' W) With Lights

Kasco Water CirculatorsAn economical way to move stagnant water.Kasco lake and pond water circulators are designed to be suspended from a horizontal float (sold separately). Circulates water to the surface, causing turbulence that reduces or eliminates ice formation. The motor assembly is sealed in an oil bath for long life and has ball bearings that provide smooth operation. The guard and motor case are made of stainless steel. The 1/2-hp water circulator treats a 3050' diameter area, while the 3/4-hp model treats a 5075' diameter area. Each unit includes a motor, propeller, 20' of suspension rope, guard assembly, zinc anode and 100' of low-temperature-rated power cable*. ETL-approved to UL standards. Two-year warranty.

Options:Horizontal Float: Attach the water circulator to this float to circulate water up to 18' deep.

C20 Timer/Thermostat Control: Designed for outdoor use, controls how long the unit will operate. One C20 controller will control one water circulator.

VoltageKF501-100 1/2 hp 115KC751-100 3/4 hp 115KC752-100 3/4 hp 230KC4400-100 1 hp 115KCH4400-100 1 hp 230C20 Control UnitHF Horizontal Float*Also available in 50' to 200' cord lengths.

hf

C20

27

Test Kits

Alkalinity.Alkalinity refers to the quantity and type of compounds present in the water that shift the pH above 7.0. Water with high alkalinity tends to be more strongly buffered. Buffering will reduce the tendency of the pH to shift. Add sodium bicarbonate to increase alkalinity (buffering capacity) and calcium chloride for hardness. Testing takes 2 minutes. Range: 0 to 200 ppm.LM4491

Calcium hardness.Because calcium and magnesium are both major components of the total hardness of water, measuring hardness by itself may not reveal enough. Recirculating aquaculture systems need calcium levels greater than 50 ppm to maintain a fully functional biofilter. Testing takes 2 minutes. 0 to 200 ppm. LM3609

Pond Care Master Test KitThis is a complete kit for testing pond water. Tests include pH, ammonia, nitrite and phosphate. Kit contains instruction book, improved color cards for easy reading, 4 test tubes, holding tray and enough reagents for 50 tests each.

164M

Fish Farm 6 Test KitThis is a good kit if you are using meters to measure pH, dissolved oxygen and temperature. The kit is the same as the LMAQ2 but without pH, dissolved oxygen and thermometer. Kit weighs 10 lbs, refill kit weighs .5 lb.

LMAQ3 Fish Farm 6 Test KitLMAQ3RP Reagent Refill Kit

Test RangeAmmonia Nitrogen .23 mg/LNitrite .05.8 mg/LAlkalinity 0200 mg/LCarbon Dioxide 050 mg/LChloride 0200 mg/LHardness 0200 mg/L

LmAq3

Limnological Water Test KitKit includes seven individual tests for dissolved oxygen (010 ppm), wide-range pH (3.010.0), silica (.510 ppm), total hardness (0200 ppm), nitrate (.21.0 ppm), phosphate (.21.0 ppm) and carbon dioxide (050 ppm). Kit and reagent refill include enough reagents for 50 tests each (nitrate only 40). For fresh and salt water. Kit also includes sampling bottles, three handbooks and analysis report forms. Kit weighs 18 lbs. Refill weighs 1 lb. All components contained in a weatherproof carrying case.

LM5902 Limnological Test KitLM5902RP Reagent Refill

Lm5902

Dissolved oxygen.This kit provides an inexpensive alternative to a dissolved oxygen meter. Testing takes 5 minutes. 0 to 10 ppm. Note: These tests may not give accurate results when used with ammonia-reducing chemicals.LM7414

hardness.The total hardness of water generally represents the total concentration of dissolved calcium and magnesium ions. Although closely related to alkalinity and the buffering capacity of water, high alkalinity may not always indicate high hardness. Hard waters (above 150 ppm) are generally more productive for fish than soft waters. The typical range for aquaculture is 50 to 200 ppm. Testing takes 2 minutes. 0 to 200 ppm.LM4482

Iron.Well water often contains high concentrations of ferrous iron (iron in solution). Concentrations as low as .2 ppm can be harmful to certain species of fish. To remove iron, aerate the water and then settle or filter out the resulting orange iron oxide particles. Testing takes two minutes. Range: .05 to 1 ppm.LM7787

ph.This is a measure of hydrogen ion concentration, or more simply, whether the solution is acidic or basic. Units 0 to 6.9 are referred to as acid or acidic. Units of 7.1 to 14 are considered basic and pH 7.0 is neutral. Takes 2 minutes. Range: 5.0 to 10.0; LM2159-01 range: 7.7 to 8.4 (Cresol Red).LM3353

phosphate.Phosphates enter water supplies from wastewater treatment, sewage, soil runoff, fish foods, etc. Although necessary for biological processes, too much phosphate may cause excessive growth of algae and plants. Testing takes 2 minutes. Range: .5 to 100 ppm.LM3114

Nitrate, low level.This is the final nitrogen product formed by bacterial oxidation of ammonia. Although it is not usually considered a threat to freshwater fish, it is a plant nutrient and can harm marine invertebrates. Testing takes 12 minutes. Range: .25 to 10 ppm.LM3319

Nitrite.This is an intermediate compound formed in the oxidation (nitrification) process of ammonia becoming nitrate. Nitr ite can become toxic in recirculating systems. Nitrites interfere with the ability of the fish's blood to take up oxygen (levels as low as .2 ppm can cause "Brown Blood" problems with catfish). Testing takes 5 minutes. Range: .05 to .8 ppm.LM3352

LM4482

28

pH Testers

American Marine pH Meter The PH370 is a great little pH meter at a very affordable price. The detachable probe with its 10' cable uses a BNC connector. It has built-in slope and calibration adjustments but is not temperature compensated (if you take measurements anywhere near room temperature, the temperature error will be negligible). Two-point calibration.

The digital display is easy to read, even in full sun. Uses one 9V battery (included). Two-year warranty on the meter only. Measures 5.5" L x 3" W, weighs just .3 lb. Calibration solutions sold separately.

PH370 Pinpoint pH MeterPH370R pH Repl. ProbePA12 AC Adapter

ph370

YSI EcoSense pH/Temp PenIt floats!This addition to the EcoSense line features one-hand operation, 50-set memory and low cost. Measures 0 to 14 with an accuracy of .02. The pen has IP67 waterproof housing; ATC; auto-buffer recognition with 1-, 2- or 3-point calibration; and a replaceable electrode. "Hold" feature locks reading on display, which has on-screen instructions. Has a belt clip and lanyard on the back and floats if dropped in water. Measures 2" W x 7.5" L, weighs .3 lb. One-year instrument warranty, six-month electrode warranty. Calibration solutions sold separately.

YPH10 pH10 Pen605113 Repl. Electrode605118 LR44 Repl. Batteries (4)Y580 Carrying Case

yph10

Waterproof pH TestersThese floating testers have a large LCD, push-button calibration with buffer recognition (can be calibrated to 3 points), auto shut-off after 8.5 minutes, automatic temperature compensation and a user-replaceable double-junction sensor. The pHTestr 10 reads -1.0 to 15.0, the pHTestr 20 and 30 read -1.00 to 15.00 and the pHTestr 30 has simultaneous temperature display in C or F. All have self-diagnostic messages such as battery power indicator and a hold function to freeze values for future use. Measures 1.5" W x 6.5" long, weighs .3 lb. One-year instrument warranty, six-month electrode warranty. Calibration solutions sold separately.

WD-35634-10 pHTestr 10WD-35634-20 pHTestr 20WD-35634-30 pHTestr 30WD-35624-38 Repl. pH SensorTP4 Soft Carrying CaseTRb Repl. Batteries (6-pk)

WD35634-30

pH Calibration KitKit includes two each calibration pouches 4.01, 7.00, 10.00, rinse water and sample mixing bottle. Plastic carrying case is foam lined and cut out to hold components. Fits most pH pens and waterproof testers. Weighs 1 lb, measures 9.5" x 10.5".

PHPC

pH Calibration SolutionsCAL4 pH 4.01CAL7 pH 7.00CAL10 pH 10.00

CAL7 CAL10CAL4

pH Calibration Kits for Meters & PensKit PH47 consists of five 20-mL calibration pouches of pH 4.01 and pH 7.01. Kit PH71 consists of five 20-mL calibration pouches of pH 7.01 and pH 10.01.

PH47PH71

ph47

An example of how to use the yph10 in the field.

29

Conductivity and Turbidity

Waterproof ExStik Conductivity/TDS/Salinity MeterHigh-accuracy, multirange sensor measures four parametersconductivity, TDS, salinity and temperature. On power-up, meter does a self-calibration check. Stores up to 15 labeled readings for recall. Temperature range: 32149F (065C).

EC400 ExStik MeterEC405 Spare Conductivity Cell*EX006 Weighted Base w/5 Solution CupsEX007 Spare Solution Cups (24 Pk)CA895 Small Vinyl Carrying Case

*This conductivity cell is not interchangeable with other ExStik meters.

Range Resolution Accuracy

Conductivity 0199.9 S/cm .1 S/cm 2% FS 2001,999 S/cm 1 S/cm 219.99 mS/cm .01 mS/cm

TDS/Salinity 099.9 ppm (mg/L) .1 ppm (mg/L) 2% FS 100999 ppm (mg/L) 1 ppm (mg/L) 19.99 ppt (g/L) .01 ppt (g/L)

EC400

Waterproof ExStik II pH/ Conductivity/TDS/Salinity MeterRugged combination, flat-surface pH electrode, high-accuracy conductivity cell. Stores up to 25 labeled readings for recall. Kit includes calibration solutions, weighted base, 3 sample cups and a carrying case.

EC500 ExStik II MeterEC510 ExStik II KitEC505 Spare ElectrodeEX006 Weighted Base w/5 Solution CupsEX007 Spare Solution Cups (24 Pk)

Range Resolution Accuracy

Conductivity 0199.9 S/cm .1 S/cm 2% FS 2001,999 S/cm 219.99 mS/cm

TDS/Salinity 099.9 ppm (mg/L) .1 ppm (mg/L) 2% FS 100999 ppm (mg/L) 19.99 ppt (g/L)

pH 0 to 14.00 .01 .01 EC500

Turbidity MeterThe TM710 is a handheld meter designed for surface and groundwater turbidity measurement. Applications include turbidity in rivers, streams, reservoirs, groundwater, water treatment, wastewater treatment and industrial process control.

The meter combines a 90 nephelometer with a transmissometer, which measures turbidity by the ratiometric method. This is the most accurate technique for turbidity measurement. Errors typically caused by variations in light beam intensity, fouling of windows, changing colors and ambient light are virtually eliminated.

The TM710 sensor is controlled by an internal microprocessor that monitors the two signals and calculates the ratio and the resultant turbidity value. The sensor has a 420 mA amplified signal, which may be fed to a datalogger, PLC or other devices.

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