Hi, My pond is new and holds 2200 gal. I currently have Aquascape skimmer and waterfall which turns the water over constantly. I just installed a Blue Diamond Model ET air pump and Root Scape large pond aerator. Looks like a lot of air being pumped in. Question, will to much air harm the Koi and can a valve be installed in line to cut the flow back w/out overheating the pump? Thanks in advance for the help. Russell Edit I'll learn to rotate the pics. Sorry.