Pool = 25000 gallons, SWG, plaster, opened 5 days ago:
Recent test results from this morning using TFT test kit:
Temp = ?, need a new thermometer, I'm guessing it's about 70 if I'm lucky
PH = 7.0-7.2 was 8.0, added MA to bring TA down, opened spa returns this a.m. so it overflows into pool to aerate to bring PH back up
FC = 4.0
CC = 0
TA = 80, down from 100
CH = 180, will add calcium later today, calcium was not low last season, however I had to add some new water and some rain/snow water got in over the winter when the cover blew partially off, maybe 12inches of water had to be added, we still probably could use another inch or so, especially with no rain forecast for the foreseable future. I'm guessing the addition of new water brought down the CH? We do have well water which I need to test to see what the chemistry is.
Should I bump up the CH to closer high end of the range to 350? Looking at the pool calculator.com, even if I get everything into fall within the ranges provided, it seems to tell me that the CSI is not good and "Potential to become corrosive to plaster"?
CYA currently about 45, will be purchasing some CYA today to start to try to bring that up to 70, so I'll have to get the FC up to about 8.0 by running the SWG more
I want to add borax, but my local walmart only had 8 boxes, so I need about 12 more, but I do have 7 gallons of acid on hand currently to add when I gather up enough borax.
Should I lower the TA some more?
Does it matter what order I start adding these things?
Will CYA bump lower the PH and lower the TA some at the same time, since it is an acid?