My plaster was redone last year, so I would not think the new plaster is still causing the pH to keep going up. It seems like when I knock it back down the water clears up for a time, but then gets cloudy again as the pH raises, although this is just a generalization on my part and certainly there could be other factors at work. Anyway, my numbers are:
TA - 100
pH - 8+
CH - 230
Water temp - @85
I do not use chlorine; rather, I use Baquacil.
Any recommendations (other than switch to chlorine....I've heard that one WAY too often From some quick research here, it looks like perhaps lowering the TA would help? Last year ever since the fresh fill following replastering I always kept it around 80-90 although it did reach 100 back in June (I won't even go into the problems I was having with the pool in June...the water was green for weeks). So if I were to drop the pH considerably lower - to 7.2 or 7.4 temporarily, would that help? I don't really have a means of aeration - I know this is recommended also.