Kasco water circulators are ideal for creating directional water flow in your pond or lake. This transforms still, stagnant water into a stream environment and helps add vital oxygen. Still, stagnant water promotes the growth of unwanted surface and bottom vegetation such as algae. By eliminating the stagnant water, the water circulators help limit the growth of the unwanted aquatic plants and keep your pond cleaner. Stagnant water contributes to rapid mosquito reproduction, including those that may carry the West Nile Virus. Creating a stream environment helps limit mosquito reproduction and thereby helps control the overall population of mosquitoes in your area. 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 ways: Rope Suspesnion (included), horizontal floatation kit (included), and Universal Dock Mount (NOT INCLUDED), but can be added for an additional cost. Just call us for details.