the well is about 125 yards from the north pond but ponds are stacked back to back and the well is 20ft from the middle of south pond and there's no way to get the 2 inch pipe across the south pond. i tried using a sump pump to move water from the back end of south pond to north pond but water was very hot and didn't make any difference. i will move air to 3ft and run air like you suggested. would it help to freeze 5 gal buckets of water in deep freeze and put in pond at dark? i went and looked at my neighbors pond this morning about half mile from me and it has a complete fish kill with the deepest water at 3ft. some of the other ponds around here are gone but there ponds were made for cattle my ponds were made for fishing with still good deep water.