I have about the same problem as the wolf. I am aerating my pool with the sprayer that I bought with the frame set. I read docs notes and it said it can take awhile "You must be patient; you can not hurry the process;" How long should I be running the fountain? The water here in sw Michigan is very cold yet. (72* near the solar cover) Could this be part of it? OR could the vinal of the intex pool have anything to do with it? Maybe not enough stablizer? I know run my numbers and post them.. ..What I'd really like to do is take a sample to a pool place, but out here in tim-buck-too its a drive to get to a pool place...It will probly be July before it gets warm enough to swim in anway.. :-( Kimrst