I seem to have trouble with rising ph in my hot tub.
I have a bromine tub with a floater wich keeps my bromine level around 5 ppm i also have an ozonator. I am hardly using the tub at the min cause weather is rubbish here in UK so the tub isn't getting much airation but no matter what i do the ph seems to keep rising. My Ta is on 85 at the min with ph of 7.6 but i bet u over the next couple of days its back up to 8.0-8.2 without it even being used. My Ta has been even lower than this in the past but still find my self having to keep adding acid to keep ph down. The Ta as well as ph appeared to have increased last time i tested. I thought the bromine tablets were acidic and supposed to have the opposite affect?
The only other chemical im adding is non chlorine shock if my bromine goes low
Any help on this would be appreciated.