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Mknauss, thank you. I was reading over the no drain exchange information. I'm a little confused in calculating the delta T. I'm thinking that because I don't have a big temperature difference in my pool and fill water there will be a lot of mixing. Pool water: 78F (is delta T calculated...

Hello, I just got my new TF pro test kit and ran my tests. For a 10,000 gal fiberglass Inground pool, sunny Florida in a pool cage. Pool is cloudy with a tinge of green (was very green earlier this week, and suspecting the cya was high due to products used and tests available to me I exchanged...

New Dude, Yep, I read all those articles, thanks! Those pictures in how clear is clear are amazing! Yes, I am sure I need to drain and refill. What I did twice this week, was to drain about a foot off my pool, using the vacuum running so I could get the water below the skimmer without running...

I discovered your site a few days ago. My pool, that I've taken care of for 5 years (when we moved in we had the fiberglass redone), had turned green, and I was disappointed when the pool store test claimed cya was 148! And yet she didn't advise me to do anything about that even though algae was...