Well, I learned that when I use the poolcalculator.com that I should check my numbers TWICE and dose ONCE. It's been awhile since I used Borax to raise pH up from 7.2 to 7.5 and I plugged what I thought was "7.2" into the pool calculator. Well, after I got back from putting 99oz. of Borax in my pool I went to close down the pool calculator and happened to notice "7..2" in the NOW column (notice the extra decimal point) Well.... I changed it to the correct "7.2" and well, long story short, I've dosed my pH to 8.2 now Let's just say, from now on I WILL CLOSELY LOOK AT INPUTTED NUMBERS !!!
Question? Should I stop by Home Depot or Lowes for muriatic acid?? Or can we safely swim while the pH slowly creeps down from our acid rain as has been happening all summer? Usually takes about three weeks to creep from 7.5 to 7.2 and that's if there has been good rainfall during that time. TA is 170 and I have had no problems with pH swings other than the slow creep down. Thanks in advance for any advice.
PS - Any recommended brands and usual price for muriatic acid from Lowes or Home Depot?