System has worked flawlessly since purchase. I placed aerators at 6 foot depth 30 feet from pump. Aeration is excellent. Pump is on a dock and I placed it in a 55 gallon Husky storage bin in which I drilled 20 1 inch diameter holes for venting. Unit has been working non stop for about 30 days. Water looks great. Temps here have been in the upper 90's. I am impressed with the product and customer service.