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Thread: CYA Article found by Kent Williams EXecutive Director of PPOA

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    Join Date
    Jul 2014
    Location
    Lancaster PA
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    24

    CYA Article found by Kent Williams EXecutive Director of PPOA

    This might be on the forum already but after doing some research I found this and it is a very easy read with-out a bunch ofChem-Geek speak (this coming from a Tech-Geek, lol). To large to upload so here is linkl



    Link
    Thank you,
    Shawn

    Pool - AG 12000 Gallon 14 years old
    Hayward Xstream CC1500 with the same pump that came with it.

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
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    37,879

    Re: CYA Article found by Kent Williams EXecutive Director of PPOA

    This article has been discussed extensively several times before, for example here.

    It has an interesting mixture of exactly right, somewhat misleading, and dead wrong. In particular, their chlorine "staying power" graph is wrong. Higher levels of CYA continue to reduce chlorine loss to sunlight significantly, much more than their graph shows. Their bug-killing-power chart is misleading because you should be raising the FC level at higher CYA levels, which will restore the kill times observed at lower CYA levels. At the same time, their pushing people to be more aware of their CYA levels is very appropriate.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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