I do not have a SWCG, but I do have a waterfall and a raised spa, so I know I aerate considerably (my pool runs 6 hours a day, and everything runs when it is on). I check pH daily, or every other day at the most, and I usually have to add 8-16 ounces a day to keep pH in check. I have not added borates yet, but it is something that I am considering.
Interesting. I'd like to see what percentage of Pebble pool owners have a SWCG and/or aeration compared to using liquid chlorine and no aeration. It would be interesting to see if the pH spike is still on the latter pools.