my numbers

well i would have to say no,to these being my opening numbers. I have been open since end of march. But i have not done anything to them but bleach and a lilttle acid.. Ph seems to be more stable this year then last year. We swam yesterday all day long. the water was 90 deg and so nice... wife and i like it warm the kids like it colder, so you know who won this time.
 
I wouldn't let the TA go below 50, but 50 should be alright. Actually, with borates it is totally fine. Without borates it can potentially allow the PH to swing around a little too much. In practice it has proven livable for most people who have tried it.
 
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