Mark C.I agree with Cecil on the windmill. If you do install a windmill consider a high performance rubber membrane diffuser (Vertex coactive airstation)instead of the standard stone.This way when you do have some wind action you will move 4-5 times the water as the standard airstone normally supplied.If you can get power within a few thousand feet I would go for a an Vertex Air 1 instead.(sorry about the spam) but been there done that on the windmills. Ted
