cmf - to adequately circulate 2.5 acres I calculate you will need 1 windmill per every 0.75 ac or 3-4 windmills. Even then as Sue says you likely will not get much water movement during the dog days of July-Aug. I suggest an electric compressor system. It moves more water more dependably than a windmill. They do make ornamental windmill models or both windmill plus electric system as supplimental. If you get both I am positive you will see that the electric system provides much more water movement even during a good wind.


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