Hello everyone, I have a 20x40' inground, concrete pool with about 30,000 gallons. I just had the pool refinished about 2 weeks ago. Since then I've covered it, have been adding/testing chlorine, and have added about 2 gallons muriatic acid as the pH is always super high (>8.0)
Here's all my numbers tested this evening:
FC = 3
CC = 0
TC = 3
pH = 8.0
CH = 170 (dropped from 225, common with refinish?)
TA = 60 (dropped from 80, presumably from the muriatic acid)
The PB gave me a form that recommends CH at 200ppm and TA at 100ppm, so I need to raise CH by 30 ppm and TA by 40 ppm.
I have a calculator that says to add 11 lbs of calcium chloride (to increase 30 ppm) and 17 lbs of sodium bicarbonate (to increase 40 ppm). I also have 0 CYA, which I will need to add, but right now I have the cover on so not urgent (?).
1. Is there an order to add these? Which should I add first?
2. Should I get the pH down with the muriatic acid to around 7.2-7.4 before adding the sodium bicarb?