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Is the pool calculator app still working, or has it been replaced by Poo Math? thanks

I am wondering what the PH value is for 12.5% liquid chlorine. My pool is stuck at 7.8, added muriatic acid to bring it down to 7.4, but it keeps creeping back up consistently. I'm adding approx. 1/2 gal of LC each morning.

I had an original CH of 50, will there be any effect, on the chemical balance if I raise the CH. And is it necessary for a vinyl pool?

Can a chemistry wiz please take a look at my Pool Math logs and help me with a sanity check on what is going on with my water. Pool is clear and no visible signs of algae. It seems to me like it's eating quite a bit of LC on a daily basis. Last OCLT showed a 2ppm drop overnight. Thanks in advance

Should the pump be running for an overnight OCLT test? Searched the forums, but didn't see anything definitive.

Has the pool math website been replaced by the pool math app?

While I'm Slamming my pool, I just ran a test for FC using the K-2600 FAS-DPD kit. Just out of curiosity, I did the 25 ML test, and the 10ML test on same water sample just for comparison, surprised to find the results were different. Tried several times, same difference in results. Any body else...

I just opened my pool on Memorial day, due to a mesh cover it a was a total mess as always.:( Got out most of the "sediment" leaves, worms, and such, still working on getting the rest of the stuff out using the main drain as much as possible (don't want to vac to waste to much and have to add...