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    No chlorine from SWG - sudden onset

    I have a Pureline Crystal Pure 60K gal SWG, installed 2018; rated for 10,000 hours. Usually maintains adequate Cl when set at 18-20%, pump run for 8h/d.. Suddenly, Cl was dropping, despite setting SWG to 100%. Plates looked clean a month ago when I installed it (after it was removed for...
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    Does Dolphin Active 30i work in gunite pools?

    I have a Dolphin Active 30i for about a year. It seems to need to be run 2 or 3 times to get all of my 16 x 32 gunite 25,000 gal pool. It seems like many of the TFP good reviews are from folks with vinyl liners. Anyone with a gunite pool have experience or tips to share?
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    Vacation and new SWG. What to do?

    First, thanks to the all the info here on TFP and to those who have responded to my few questions, and against the advice of a few pool professionals I've changed to a 2 speed motor and SWG and I'm deliriously happy. I also got a dense mesh safety cover last fall, and the pool was completely...
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    Replace pump motor with dual speed?

    I have an old 1.5 HP single speed high-flow Centurion motor on a CHII-N1-1 Pac-Fab pump. The motor has always been too big -- designed for a water feature that we never added. Pool equipment guys have told me it is oversized for my 25,000 gallon gunnite pool and 62 GPM sand filter. I've kept...
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    Can I Close without mustard algae cure?

    Pea-green pool last spring, cleared in <5 days with bleach, subsequent excellent year with BBB now that my CYA is in the normal range. Had trouble with mustard algae in early Sept, did SLAM and MA shock, then was out of town for 4 weeks, unable to get someone to add chlorine. We are in extreme...
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    Advice about FC and CYA

    Have been lurking TFP for several years, just joined the forum. Thanks for great results with TFPC. I mostly try to use bleach, but sometimes add Trichlor tabs when I'm away for a week or so. Pool has looked great all year. A friend was looking after the pool while I was away, noted low (or...