PH keeps rising

[waterbear]

Usually when using a net acidic sanitizer (trichlor, dichlor, bromine tabs, MPS) then you do want a higher TA, usually in the range of 100 to 120 BUT if your pH is constantly rising (and you don't have new, curing plaster less than a year old) then your pH rise is from outgassing of CO2 and you want to lower the TA. If you lower the TA and are using a net acidic sanitizer (trichlor, dichlor, bromine tabs, MPS) then you want to monitor TA weekly and pH daily or every other day so the pH does not crash suddenly. You do not want K-2005, you want a K-2006. Everything is the same EXCEPT for the chlorine test and there is a world of difference.

[Devon]

Follow Waterbear's advice above pH and TA. Calcium of 220 is ok. The Taylor K-2005 is not what you want. It can only measure chlorine levels up to 5ppm whereas the K-2006 can measure to around 50ppm. With high CYA like you report, you'll have to run high chlorine levels. If you haven't already done so, please read the Best Guess Chlorine Chart in my signature below about the connection between CYA and chlorine levels. You need to get the K-2006. You'll have to order it online. It isn't going to be available locally.

My CYA is around 40, I thought that was in range. Also some of the links you provided are not accessible (Testkits, Pool Chemicals, Cloudy Water, Using Muriatic acid)

[Watermom]

CYA of 40 is fine. In post #6 above, you stated that your CYA was 120, though. That is what I was going on.

Until your registration is complete, you will have to log out to be able to follow the links. If you look for any post written by PoolDoc, Aylad or me, the links will be in our blue signature boxes. (I'm sorry I can't tell you how long it will take until your registration does get completed. Ben is the one who does that and he has been unavailable for the forum for a bit. Hopefully, he'll be back around soon.

[PoolDoc]

membership updated . . .

[Devon]

Watermom, that CYA of 120 was before I drained and refilled the pool. Sorry if I wasn't clear about that. As of now, things seem pretty good. Ph is around 7.6 and TA staying at 90. We had nasty winds here for 5 days in a row so much of my time was spent battling leaves and all the other junk that gets blown into the pool - gotta get a cover one day but not sure if one will withstand 50+ mph winds.

Thanks.