RC51 -Very good questions. In my experience the shallower and smaller a pond is the better a windmill tends to aerate primarily because small shallow ponds require less circulation compared to larger deeper ponds. It is all about average depth and water volume. A single windmill does not provide adequate circulation in the 'average' pond larger than 0.25 to 0.7 ac, especially during adverse conditions. During warm temperatures, clam winds, and algae blooms, expect dissolved oxygen sags and fish kills when a windmill is the only source of aeration mixing. If high quality fish are important for the pond, I would not depend on windmill aeration.
Last edited by Bill Cody; 11/08/13 03:38 PM.
