I have a 30k pool and I’m planning to add some borates to it using boric acid. I plan on buying 80lbs of boric acid from dudediesel and add about 70 lbs of it plus about 5 lbs of borax (93/7 ratio). That should bring borates level to 50ppm without affecting PH (TA?).
My PH is 7.4 and TA is 130-140 right now. I know the approach is to have TA lower before adding borax, but since I’m going mostly boric acid, I assume it should be ok. Am I right here?
I plan on adding the rest of boric acid (10lbs) at the end of the season to compensate for backwash and bring it to 50ppm before closing. 10lbs is about 14% of initial load, so it should be somewhere around 50ppm.
I was thinking about buying borate strips for next year since this year should be ok by calculation only. However looking at some pictures posted here of borate strips it seems that it’s really hard to judge the levels of borates by the strips. So I wonder if I could simple up the levels by 15% at the end of the season for couple of seasons? Is it a bad idea?
Also do borates get consumed thru the winter or do they stay?