Had my water tested
I had my water tested at Leslie's. I told him the pool looked great, but I couldn't keep chlorine levels up. He said that I have fallen for the old-wives tale about CYA levels. My pH was a high, which I knew, and he said that could have to do with the low chlorine. My phospates were over 1,000 and he said that was my number one problem. He said I should not waste my time testing for CYA until I get my phospates under control. He also advised putting two caps of a phospate remedy into the pool each week just to keep it in check.
I can't remember where, but I read recently that phospates do not matter. Who to believe?