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Hi! Thanks! I’m using a TF-100 test kit.

Friends, I started opening my pool a week ago and the water is very cloudy. I can’t see the bottom of the pool on the shallow end. After a few days, i decided I should change out the sand in the filter, it hadn’t been replaced in years. After doing so, I had to backwash every two hours because...

Thanks, that was my second test after my first addition of CYA. I got more in a sock in the skimmer now. This site is amazing. Thanks so much!

I figured the CYA test was subjective so I made up 12 based on the tube being full and it only being partly cloudy. Was that stupid?

I’m using the one sold by this site. I think I used it correctly? I’m also using poolmath

========================================== Frank’s Pool ------------------------------------------ Build Type: Plaster Volume: 14500 gallons ------------------------------------------ Latest Test Result Summary: FC: 11.0 (an hour...

I’ve read through most of the articles and many of the threads, but I’m still confused. Will 20 Mule raise my TA? Other interweb sites say it won’t and TFP threads appear to lean toward yes. Is there a definitive answer? I’m trying to raise my pH without raising my TA. And yes, I’ve read those...