High TA during slam

crazyDIYpool

Active member
Aug 2, 2022
27
PA
Pool Size
19500
Surface
Vinyl
Chlorine
Liquid Chlorine
so I allowed my poor chemistry to get completely out of whack for like two weeks. Now I am trying to fix my mistake.

My CYA super high so I replaced about 60% of my pool water (and I’m kind of confused as to how that happened. I do use the pucks when I’m on vacation but the rest of the time I used liquid chlorine. I have used some shock – – I guess it has CYA in it? I’m in PA and my pool is only open for five months a year. During the winter it rains and snow. I really had trouble believing the number I was getting. That was part of the problem and why I let it go on too long.). Then I began a slam. My pH was good before I started. My water is blue now instead of green but still super cloudy. Chlorine is still at slam levels. (3 days in. I have a sand filter) My TA is too high at 220ppm. Should I add acid now? Or retest once my chlorine is normal? But I’m supposed to keep the chlorine high until the pool is clear? I know I’m not supposed to believe pH number while the chlorine is so high. Maybe TA is the same? I would appreciate any advice.
 
We'll address TA afterwards. Anything else too. The only thing that matters now is FC.

If you feel you've lost a lot of water to backwashing (and replaced it), then check your CYA and adjust it back to 30 if it dipped below that. :)
 
Ok— I will wait and look at everything once I’m done woth FC.

Unfortunately, even after replacing all that water, my CYA is still at 60.

Thank you!
 
And by still at 60 I meant it is still higher than I wanted it to be.
60 is entirely fine. I'd probably run there on purpose if I was lugging jugs, wanting to actually be at 50 but allowing some room for the monster storms that roll through to dilute it a little.
 
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