I was curious about the PH because mine was always too low, and I was constantly having to add LOTS of PH increaser. Also, my CYA was well over 100. The pucks were the culprit in both cases.

I've since sold all my pucks dirt cheap. All 60 pounds of them. (yes, I had just gotten more!) But I didn't want to be tempted to ever use them.

Nothing but bleach for us from now on!