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Awesome! Just ordered the new gauge from tftestkits.net. Thanks for your help!

Thank you so much! That’s very helpful. When you say “check to see if it falls to zero when the system is off,” does that mean just turn the pump off? When I turn the pump off, the gauge does not fall to zero. In fact, it doesn’t move at all, it stays at 25-26. The gauge was left out all...

Ive been a TF-100 kit since about 2 months after the pool was installed. (Didn’t take long to realize the algaecide and chlorine tablet combo our pool installer recommended wasn’t going to work!) Current results: pH 7.5, Cl 5, CC 0.5, TA 110, CYA 20. I’m working on getting the CYA up - we just...

We have a 2.5yo 17000 gallon in-ground pool with a sand filter (installed May 2020). The “base” pressure the last 2 summers (when clean) was around 17-18 psi. If it rose to 25 or more, I’d backwash it and the pressure would go back to 17-18. This year, the base pressure seems to be around 25...

Hi - Our fiberglass chlorine-based pool was installed last year, and filled with tap water. The TA has been high since we filled it (mostly 120-140 range), although pH had been stable around 7.2. I just opened the pool this week for the spring. TC has been at shock level (10-12) for a full 3...