Quote Originally Posted by aylad View Post
Chlorine consumption sounds about right. What is your CYA level now?

Also, what is your TA? Is your pool plaster new, and curing, or is it older? This thread has gotten so long I can't remember the details without reading the whole thread. If plaster is curing, then the pH is going to rise as part of the process. If it's older plaster, and your TA is high, then you might try lowering it to around 70 and see if that doesn't make your pH more stable. Also, if you have a fountain, waterfall, or other form of water aeration in operation, that would contribute to the pH rise.

Janet
CYA is about 35 give or take. The plaster was redone a few years ago, so i believe its past the curing stage. The last TA reading I got was about 110 ppm.

The only form of aeration would be the hot tub when its on, but it hasnt been used much at all, maybe two or 3 times and not within the past 2 weeks.

How should I go about lowering the TA? Should I aerate it using the hot tub blower?