LB,
What Bill said right here is most important.
"Depending on the size and location of the diffusers, this mixing and associated currents could easily expand into the water 3-4 ft deep to keep it more evenly mixed."
With that said you may not have to do anything in the shallow end is what he is saying. With the exception of maybe in winter to keep ice off the pond if you get enough ice.
Think about what your diffusers do for a sec. Lets say you have 2 stations and 2 fusers on each station. Well diffusers pull water up from the bottom and push it up to the surface to get more oxygen well I think what Bill is trying to say here is in this pulling or upwelling of water if fusers are in right place in pond it could pull enough water from shallow area also to help mix it enough so you wouldn't have to do anything in the shallow area. Least I think that's what he meant... lol
RC
