Ok, here is my situation I just changed my water I had yellow flakes when I drained it and when I was filling it up they returned. I got rid of them. I added my Calcium Hardness Increaser, Chlorine and my Shock l let some hours pass came back to it and my pH is at 8.0 this is the first time this has happen for me usually I can balance this all out quite well. I figured just let it all settle down come back to it tomorrow. I tested it today and it is still at an 8.0 I added about 6 ozs of Sodium Bisulfate in 1 oz measurements and it still haven't moved. What is going on? What can I add to it to bring it down? I'm out of Sodium Bisulfate, is there anything that works better? My numbers are Cl is 5, TA 90, Calcium 350, and CYA is at 30.