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So with a CYA of 60, I wanted to raise my FC from 1 to 8. PoolMath said to add 29oz of cal-hypo 73%. Then just for kicks, I set CYA to zero, and it said for that case, I would only need 9.6oz. Is that right? I understand why you want higher FC when CYA is high, but I wouldn't think it would...

I saw green in the pool a couple days ago, so I shocked to kill it, and crossed my fingers that by today the Cl would be low enough to swim for people coming over. CYA was 60, so PoolMath said SLAM level is 24. I skimped a little and added CalHypo such that it would get to 20. Now I'm testing...

I have a Jandy JXi400N gas heater for my outdoor, in ground pool. It was installed a few months ago, and just the other day finally got the gas and electric lines hooked up and fired it up. Some leaves had collected in the exhaust flue, and it smelled like they were burning. The installer got...

After going through Leslie's algae removal procedure 3 times, each time we could not get the dead algae out of the pool, and then it bloomed again. We would see it all there settled on the bottom, but when we vacuumed, it came straight back out through the jets. BTW the Leslie's procedure is: 1)...