24000 gal, plaster, SWG
With my SWG (aquarite) recommendations taken into account, here are goals. Because I have dissolved iron (stain removed with AA and jack's purple), I have sequest concentration of 12ppm. I must keep PH down below 7.2
FC 4; PH 7.1, TA 110 (aquarite says 80-120), CH 300, CYA 80 (aquarite recommends as best).
Now this gives me a SI of -6.9, which is "suggestive of a problem with plaster pools." So how do I deal with this? What do I change? If I push CH to 350 and TA to 120, I could get to -.58, but that's just barely okay. The PH is the problem. If I raise the PH to 7.2 in additional to CH to 350 and TA to 120, I can get it down to -49, but that's still not great.
Perhaps I misunderstand the metal treatment. It says keep the PH under 7.2 for a week, perhaps it increase it then? If so, to what? 7.5? And what do you think on TA and CH? Go with TA 120 and CH 350 (the maximum)?