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Thread: CYA not Moving

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    Tink9305's Avatar
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    CYA not Moving

    I have put the recommended stabilizer in twice now to get the CYA to 40 and I'm still only testing at 25. We had to refill due partially to too much CYA. Scared that that will happen again all of a sudden. Does anyone have any tips or suggestions to what I can watch for or what may be going on? I seem to be holding my TC level pretty well.

    Thanks
    14,000 AG 26' round 52"deep Hayward S166T92S Pro Series 16-inch 1-Horsepower Sand Filter
    Put up April 2014 TF-100 Test kit
    Being refilled Aug 31, 2014 due to needing to move, needing a 68% water change due to CYA, and to add support under legs

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    Wildcat's Avatar
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    Re: CYA not Moving

    I understand it can take up to a week for CYA to measure after adding, how long has it been? Go slow
    10000 Gal, IG Pebbletec, pop up cleaners,Hayward EcoStar VS, 425 sq ft Hayward Cartridge, waterfall feature

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    Re: CYA not Moving

    Exactly how/where/when did you add the stabilizer? You say you did it twice? If you put it in a sock, it should show up on a test within a week. I'd you just poured it in a skimmer, it can take a long time. If you backwashed, it may not have dissolved hardly any at all.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
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    Mod Squad tim5055's Avatar
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    Re: CYA not Moving

    Quote Originally Posted by Tink9305 View Post
    I have put the recommended stabilizer in twice now to get the CYA to 40 and I'm still only testing at 25. We had to refill due partially to too much CYA. Scared that that will happen again all of a sudden. Does anyone have any tips or suggestions to what I can watch for or what may be going on? I seem to be holding my TC level pretty well.

    Thanks
    As others have said we need more details about how/what you did. I scares me that you say you did it twice.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Tink9305's Avatar
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    Re: CYA not Moving

    I put it into the skimmer. It's at 35 now. I'm not sure what I did wrong. Thanks for the reply's. I waited almost a week the first time before I added more. I didn't know about the sock thing before, but great tip Thanks!!!!
    14,000 AG 26' round 52"deep Hayward S166T92S Pro Series 16-inch 1-Horsepower Sand Filter
    Put up April 2014 TF-100 Test kit
    Being refilled Aug 31, 2014 due to needing to move, needing a 68% water change due to CYA, and to add support under legs

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    Mod Squad jblizzle's Avatar
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    Re: CYA not Moving

    Did you backwash at any time after adding the stabilizer?
    How much CYA did you add each time?
    Jason, TFP Moderator
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