So I have read everything I can find on here regarding TA and Ph and can't seem to find the answer to this question.
I am getting my pool ready for borates and over a period of several days have lowered my TA with Muriatic Acid from 100 to 80 while aerating the pool to bring the PH back up. I have two large pool streamers creating tons of bubbles, but it is taking forever. My PH is still at 7.2 and not budging much.
Anyway, my question is this: Does TA ever change on it's own (besides adding an acid or a base)? I believe I read it can change with spill out (lower) over time, is that correct? Does anything else affect it? i.e, now that it's at 80 do I need to keep testing it?
Can I add Borates with 7.2 Ph or do I need to wait a bit longer?