I've lowered my TA to 40 to try to stabilize pH (which still climbs, but more slowly). Here are my current numbers:
According to the Pool Calculator, CSI is -.54; if I lower pH to 7.5, CSI rises to -.71, which could affect our gunite surface. I'm thinking I should raise CH to 550-600. Should I raise it higher? Would there be any problems with that? Is there any upper limit of how high I could go?