pH is pH--same as high school chemistry.Originally Posted by mwsmith2
Alk is also called variously: TA, T/A, and Total Alkalinity, and very rarely pH buffering.
CYA is also called either: Stabilizer or Conditioner
Cl is chlorine, but FC is Free Chlorine (the good stuff), CC is Combined Chloramines or Combined Chlorine (the bad stuff) and TC is Total chlorine, equal to FC + CC.
Ca can also be called CH (for calcium hardness) or just Hardness.
Michael and I do disagree (respectfully, of course) on how often to test. It takes me 2 minutes to run the OTO kit chlorine and pH tests, so I do it everyday. It's not that he's wrong, per se, it's that I'm more conservative when it comes to pool care and see daily testing as lower risk. That doesn't mean I don't cheat and skip a day everynow and then (mea culpa!), but only when everything has been stable for a while.
I believe Michael would agree with me that if, for some reason, things with your water seem iffy, and you aren't certain, more testing is necessary.
IF you have an SWG, then I must completely defer to Michael on that. I don't have one and only know a little about them. If you have to mess with it everyday, what's the point? It's a lot cheaper to just add bleach. But if your SWG allows "set and forget" for a week at a time, I can definitely see its attraction.
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