sorry if this seems like a repeat or is listed elsewhere
PH = 7.3
TA = 70
CH = 200
CYA = 40
1. should I bring the TA up to 90/100 first...then test everything again?
or also bring up the CH to 250 at the same time?
2. I will wait to test PH again, but to raise PH what is best chemical to use (I have some Leslies soda ash a couple years old) or should I get some borax or something else?
wondering if there is a preferred sequence here...or if I am splitting hairs trying to get more optimal levels?