New Above Ground Pool

justinc

Gold Supporter
Apr 3, 2019
585
Texas
Try a 24 hour SLAM and see if that doesn't sort things out. For a CYA of 60, raise free chlorine to 24ppm and hold it there for a day.
 

ddmckmle

Well-known member
May 7, 2018
111
Tomball, Texas
OK her are my number for today:
FA 4
CC 0
PH 7.4
TA 110
CH 120
CYA 60
Yesterday around 6:30 pm I added 20 oz Chlorine because it was low and we went swimming and then I added 14 oz of dry acid to lower my PH it was 8.0 and now 7.4.
Other than adding chlorine to bring it up to 9 ppm, should I add more dry acid to lower PH to 7.2 or 7.0 to see if TA drops, it did not drop from adding dry acid lastnight.
 

justinc

Gold Supporter
Apr 3, 2019
585
Texas
Your total alkalinity drop won't be instantaneous. It will go down gradually. Stop measuring total alkalinity so often... just worry about pH/FC/CC for now. pH and total alkalinity are related. If your pH is wacky... your total alkalinity is probably wacky. If pH is fine... then TA is probably fine. Makes sense? So just measure pH regularly for now and leave total alkalinity, calcium hardness, and CYA for monthly testing. Only pH and FC/CC are routine things.

I would not lower pH. Just leave it at 7.4 and check daily. When it gets to 8, lower it to 7.2ish and repeat. Your total alkalinity will gradually work its way down and you will notice your pH will stop fluctuating so much.