The pond is a standard oval shape. I do have inline shutoff valves in the lines to each diffuser so I can regulate/shut off flow.
My main reason for running both right now is trying to speed up the decay process of the weeds that grew the last 2 summers. I figured since I already had a fish kill and looks like almost total I wanted to try to get the weeds under control.
My plan for the future is exactly what you mention. Run the diffuser in the 12' section in summer and at about 3' in the winter.
One thing I am still wondering is can you over aerate a pone to the point of damaging it?
I certainly do appreciate all the help.
