Kasco Marine; Water Circulators

Kasco Marine;
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Kasco Circulators ,
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Kasco Marine; Water Circulators from Do-It-Yourself IrrigationCirculation & Winterkill Prevention
A combination of thick ice and heavy snow can in some instances be cause for concern in lakes/ponds. If your body of water has a high concentration of organic material or it is heavily infested with rooted plants in the summer, there is a chance that severe winter conditions could result in a fish kill. In shallow lakes that experience heavy ice and snow cover, sunlight can not always penetrate through these layers. Without sunlight there is no photosynthetic activity to produce oxygen, so instead oxygen is consumed as plants die off. An open area as small as a few percent of the overall water surface is typically sufficient to prevent a winterkill. Keep in mind that the saturation level for oxygen in water is temperature dependent. Colder water will hold more oxygen. Because fish are cold blooded, their metabolism is slowed down in winter, so only a small amount of oxygen is required to satisfy the oxygen demand for the fish. Introducing oxygen to the bottom  depths via our circulators allows faster decomposition of the bottom muck layer even in the winter months. 


Kasco Marine; Water Circulators from Do-It-Yourself IrrigationIce-free areas are kept open by moving warmer bottom water to the surface and by simple physical movement to inhibit ice formation. Oxygen is then transferred into the water via diffusion at the air/water interface. Precise open area in winter is a function of air and water temperature, water depth, and method of mounting the unit. In certain conditions, particularly in very small, shallow ponds (3 feet or under), circulators may not be effective for ice prevention, however these types of units are more efficient than our other units at moving water and keeping an area ice-free. They do not splash water into the air and "super -cool" the water. 

In summer months Kasco circulators can move water out of dead end canals or keep floating debris from accumulating around docks. Circulators have also been used successfully to move water through fish net pens.


There are three methods of installing Kasco Circulators.

Kasco Marine; Water Circulators from Do-It-Yourself Irrigation


The units can by mounted in either a vertical or angled position with ropes or cables.

Kasco Marine; Water Circulators from Do-It-Yourself IrrigationUNIVERSAL DOCK MOUNT
Kasco offers an optional dock mount, which allows for either a vertical or several angled positions. 

Kasco circulators can be suspended from our optional float kit to create an elongated pattern of water movement. The unit rests less than two feet from the surface and is ideal for shallow water or where you do not have a dock or place to suspend the unit.

Assembly Instructions (1.32MB PDF)


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