I have been fighting with a pool that always drifts acidic. I use chlorine tablets and I added borates hoping it would help. I am constantly adding sodium carbonate to adjust it. The pool is crystal clear, but the ph is always off. My current parameters are:
200 Cal. Hardness
We have to keep the pool covered with a solar cover to retain heat and prevent condensation issues. Any solution to my problem? I keep driving my TA out of range fighting my low pH. I have tried using muriatic acid to blow off the alkalinity but I drove it back up when I brought the pH back to 7.2. I have tried aerating by leaving the pool slide on, but never saw a difference in Alkalinity after several days. I already did a quarter water change once this year. Very frustrated. Please help! Thanks!