Hi all- I have a relatively new pool (8 weeks since start up). It's a 6,500 lap pool with an integrated spa and infinity edge. It's pebblefina plaster finish. I have an ozonator and a triclor tablet feeder.
Mostly my levels are pretty good, but no matter how much dry acid I add my pH keeps rising above 8.0. I'm worried about raising the temperature in the spa with such a high pH because of calcium scaling.
FC 1.0 (ozone is the primary oxidizer)
I was able to get my pH down last Sunday to 7.5 by adding 36.0 oz (weight) of dry acid (two doses, mixing with water first, slowly feeding in front of the pool return jet).
Since then, the pH has been stubbornly above 8. I've added 14.0 oz of acid twice but haven't seen a change in pH when I test the next morning.