My pH rises from 7.5 up to almost 7.8 every two days. I have been adding two cups of ph Minus every other day for the last month.
1) I thought this dry acid was as safe for my vinyl pool as muriatic acid is. (As per pool school--recommended chemicals). Then I read on another thread that dry acid adds sulfates to my pool. Danger? I don't have a SWG.
2) my TA has gone from 140 to 110 in the last month since adding the acid. That's good, right? (But the pH still rises.) Also..no aeration going on.