I have always maintained my ph between 7.5 and 7.8. It tends to creep up and I usually have to add MA every month or two. My TA is rock solid at 70.
After installing my SWG this week, I've been closely watching PH expecting it to rise quicker than usual, but to my surprise, just the opposite has happened. My PH has plumetted to 7.2 in just a few days. What am I missing?
The only thing that I have done in the last week is added salt to 4000 ppm (I overshot a bit) and boric acid to bring my borate level back up form 30 to 50 ppm. (and added the SWG cell obviously). I also added CYA to bring my level from 50 to 80 ppm,
DUH, just typing this out I answered my own question.
I added 90 oz. of stabilizer which, according to poolmath, lowered my ph by 0.82.
Now the question is should I leave it where it is and let it creep back up or should I add borax to bring it to 7.5?