Interesting. My plan was all along to let it run 8-9 hours at night - the compressor is in a berry shack where we sell blueberries and would be too annoying to have on during business hours anyway. Should be off peak hours too so I may save on electricity. So you don't think running the pump at 5.5 PSI will shorten the life of the pump? If I added a second aerator close the shoreline, what would I wan't to shoot for as to PSI?
