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Hi, I'm having trouble with CYA at a zero level after the winter. I've added 5# and still see little or no change. I first added 3# and could detect an increase in cloudiness in the test tube. Then I added 2# more and tested 3 weeks later and it's clear again. I can't find a record of...

New to pool chemistry, so I wanted to just post and see if anyone sees problems headed my way. At the moment the pool is just fine. As mentioned on another post i'm trying to reduce my TA, which explains the low pH Current Chemistry: pH 7.0 - 7.2, before this I have been keeping it below 7.6...

Hi Is my approach to lowering TA working as one should expect? Should I be doing this while my pool is only 10mo old? I'm trying to get my TA down from 110 (it went as high as 150 during the first few months of the pool). I'm dropping the pH down to below 7.2 and aerating with a small...

Hi, The day after gunnite this crack appeared. It is about 5' long and almost 3/8" wide. The PB says that it is easily fixed and is not structural. Is this true and if so what is the correct fix? Thanks, Chris