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Thread: CYA High or not?

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  1. 08-10-2015 07:52 PM #1
    hopkiba
    hopkiba is offline Established User hopkiba 0
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    Default Re: CYA High or not?

    FC 9
    TOTAL CHLORINE 9
    PH 7.6
    ALK 90
    CYA off the scale

    Vinyl pool

    The CYA reading prior to refilling was about 120. Pool store said 60.
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  2. 08-10-2015 10:51 PM #2
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    CarlD
    CarlD is offline SuperMod Emeritus Vortex Adjuster CarlD 4 stars CarlD 4 stars CarlD 4 stars CarlD 4 stars CarlD 4 stars CarlD 4 stars
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    Default Re: CYA High or not?

    If you had a reading of CYA 120 before draining off half and refilling then something is wrong.
    Did YOU do the CYA test before and after and exactly the same way?
    Did you add something?
    Carl
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