These diffused air systems utilize a shore-mounted air compressor that pumps oxygen through a hose to a special diffuser lying on the pond bottom. Since the bottom of the pond is where the most oxygen is consumed, it is an ideal way to deliver oxygen to where it’s needed most. As the bubbles rise out of the diffusers, they create a “lifting” or boiling action, which then creates considerable circulation throughout the pond. This circulation helps to prevent water stratification. The added oxygen and, equally important, the circulation created by these devices help to create a stable and productive ecosystem.
The amount of surface area an aeration system will effectively cover is greatly dependent on two factors: depth and shape. Long, narrow ponds may require multiple diffusers to property aerate the entire pond. Square, circular, and oval ponds can usually be aerated from one central diffuser if it is one acre or less in size.
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