During the summer months my pond will lose a couple of feet in depth and maybe more when we have dryer years. I have not seen a problem having the diffusers off bottom. The diffusers will move my water on the ponds bottom even with the diffusers being 3' off bottom. Because of that I put three of the six diffusers pretty close to each other in the open, deeper water. About 60' apart from each other. It seems to be working fine when checking DO before and after making the changes.
Last edited by TGW1; 11/28/20 07:11 AM.
