I've read plenty of threads saying new plaster will cause PH to rise and stay high for as much as a year. And if the filter is on water is dropping 12 inches out of my SPA via 3 12" wide spill overs which it's doing 10-12 hours a day every day... So I am sure the aeration doesn't help either...
But should I have to add a pint of acid every.single.day?? I am seeing a pretty consistent .2 rise daily.
Everything else seems pretty happy...
FC 3.5 (still trichloring as CYA is low and I am playing with the inline chlorinator to learn how to use it for vacations, etc.)
PH 8.0 (didn't add acid yesterday, so double whammy today. )
Our pool builder recommended borates as part of the start-up but we opted not to do it. Any chance that might help with the PH? From what I've read sounds like probably not, and worse yet, would just require more acid to drop the PH?
Playing with the PoolMath calculator I see without Borates I get a recommended 12oz to drop PH .2, with 30ppm borates it jumps to 25oz. (doubling acid required). And if I went all the way up to 50ppm it would take 34oz to achieve a .2 drop. So unless this solves or at least significantly slows down the rise, adding Borates seems like it would just make me add MORE acid which is definitely not the direction I'd like to go!