Click here to see a slide show of a test performed at Southern Illinois University on October 6, 2004.
A Kasco F2400CF, 1/2hp water circulator was placed in a 31m x 13m x 2m pond containing roughly 850 cubic meters of water with about 0.75 litres of pond dye added to aid in visualising the mixing action. The pictures were taken every 30 seconds. Watch how fast only a 1/2hp Kasco water circulator can thoroughly mix this pond!
Kasco water circulators have been used with great success to extend waterfowl hunting seasons as well. Rather than a short season due to cold weather and freezing water, with a Kasco water circulator, an open area can be maintained to attract birds. Since most hunting blinds do not include electricity, most hunters who use Kasco water circulators will operate the unit with a generator before sunlight to open the area. Then before shooting hours, will turn the generator off to avoid scaring away the waterfowl.
Kasco water circulators are great tools to limit the negative effects of spring and autumn turnover. Ponds in geographic areas that see large seasonal temperature swings often have spring and autumn turnover. Spring and autumn turnover occurs when deep, stratified (large temperature differential between surface and bottom water separated by a thin layer of water called a thermocline) water “turns over”. In spring, the surface water is heated by the sun to about 4°C, and becomes more dense than the colder, de-oxygenated bottom water. When the warm surface water becomes too dense for the colder water to support, the pond water will turn over and have the colder water on the surface. This causes the de-oxygenated water to mix with the oxygenated surface water and cause an overall lower oxygen level. When large numbers of fish are present, oxygen levels can become low enough for a fish die-off to occur. In autumn, the exact opposite occurs. The surface water is cooled by cooler nighttime periods, and when the surface water is around 10° C, the pond again turns over. Kasco water circulators can be angled downward to destratify ponds to about 5.5m in depth. By destratifying the water, Kasco water circulators move cooler de-oxygenated water from the bottom to the surface where the water can be warmed, and oxygen diffused through the air-water interface causing the elimination of the thermocline and large temperature differential, and increasing oxygen levels throughout the entire water column, and improving your lake or pond aeration.
Kasco water circulators can be used to help prevent winter-kill conditions, and protect permanent fixtures in your pond or lake. During harsh winters with thick ice and heavy snow pack, your pond can experience a fish die-off due to low oxygen levels. The heavy snow and ice prevent sunlight from penetrating into the water, causing the existing aquatic vegetation to die off. As the vegetation dies, the decomposition process uses up much of the available oxygen in the pond. As the winter progresses, the oxygen levels continue to decrease and eventually, your fish may begin to die.
A Kasco water circulator will mix the water and move warmer, bottom water to the surface to keep an area of the pond open. Only 1% of the ponds total surface area needs to be ice-free to prevent winter-kill situations. The cold water will become oxygenated by coming in contact with the air, and prevent winter-kill on your pond.
Kasco water circulators positioned around docks and/or boats can prevent costly ice damage by keeping an area ice-free around your valuables. Depending on your situation, they can be mounted in three different methods (shown below)
Rope Suspension: The Water Circulator can be mounted in either a vertical or angled position with ropes or cables.
Universal Dock Mount: Kasco also offers an optional dock mount, which allows for either vertical or several angled positions.
Horizontal Flotation Kit: Kasco Water Circulators can be suspended from the flotation kit to create elongated patterns of water movement. The unit rests less than 0.5m below the surface, and is ideal for shallow water, or where there is no dock or place to suspend the unit. With five angled positioning options, the flotation kit allows for easy adaptability for most situations.
All models include a horizontal flotation kit and two 15m braided nylon mooring ropes, and are available with 1m stub cord and connectors or a 10m power cord on ½ and 3/4HP sizes.
Features and Benefits
- Efficient / Low Power Use: Highest efficiency design for low power consumption versus competing units. Reduces operating costs over the entire life of the unit.
- Rugged Motor: Environmentally-friendly design with a hard-face internal mechanical seal and external lip seal for protection against leaks. Long-life top and bottom ball bearings. Flood oil lubricated for excellent heat dissipation.
- Low Maintenance: Clean the motor housing once or twice per year, replacing the sacrificial zinc anode when visibly corroded.
- Corrosion Resistant: Superior dependability in salt-water or other corrosive environments. All external metal motor, float, and hardware components are of stainless steel composition, and protected by a sacrificial zinc anode.
- Fully Tested: CE-marked
- Ships Easily
- Dependable: Backed by a two-year warranty
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