I think that is causing a thin layer of white foam on the surface and cloudy at the deep end (7 feet down-22,500 gal in ground). Just shocked it a 2nd time yesterday. Started DE filter early this morning. :?
Am I being too impatient to see crystal clear results?
You shocked with the filter not running? That could be a problem. Can you give more details? e.g. what kind of pool, what are your test results, and why are you shocking? I assume this is an indoor pool. Has it been closed or is it new?