Update, just erected the windmill last weekend with 7' stakes and Bill I will cement the anchors later. Used 3/8" line straight out into the water to where I would like the aeration in the winter but working great now in 5' water. Question, can I use a type of pressure value to either divert or split the air to another line say 3/4" X 200'long located in a deeper column of water for summer use and close off in the winter? Recap 1 main line from tower split into 2 lines- 1- 3/8" X 100' sitting in 5' water for winter use and 1- 3/4" line X 200' sitting in deeper water under 10' for summer use. Can both lines work at the same time considering length of line and diameter both for year round use? Or do I need a control that can only work one line at a time. It would be a waste of energy from the windmill to use only one line as the pressure increases with the strong winds I have most of the time on the island and across the lake. Thanks Bill and others

Rowly