Pond Boss Forums AERATION Should I aerate? Securing a 20' Windmill on Gravel/Sand

Hey Rowly, I don't know much about the windmill pumps but they may have either a pressure relief valve or a maximum PSI that they put out regardless of how far beyond their median speed the blades are turning. i.e. they may have a max pressure at 15mph winds that doesn't increase even if you get 25 mph winds. (This I just don't know). That said there may not be enough pressure consistently in order to run two separate lines of any great distance. Remember that the deeper your diffuser the more pressure is required to pump air through it. You could put in a valve that would allow you to swap between diffusers at different depths, that might be a good idea. As far as running two diffusers at different depths through a spliced line concurrently; there is potential that only the diffuser in the shallowest water will have any output because it is the path of least resistance.