Quote Originally Posted by JimK View Post
Mine produces visible bubbles at the returns as well. I use to have rising pH, but since lowering TA to about 80 (I use to keep it around 100) the pH rise has pretty much stopped. It's been 2 full seasons since I've added acid.
Agreed!

I keep my TA at 70-80ppm and borates at 50ppm. Since adding the borates to my water in August, my MA additions went from almost every other day to once every 5 days. In fact, I just had a recent dilution to my pool water and I need to add about 8 lbs of boric acid to get my Borate levels back up. I like to use boric acid instead of borax as the pH rise from borax is too worrisome to me. I'd need to add MA along with it or else I'll get cloudy water from calcium. Boric acid has the added benefit of bumping my pH down a bit on addition so no need to worry about calcium issues.

But even with all that, I always know when the cell is running by the little bubbles coming out of the returns.