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Thread: Interesting read at PA Dept. of Health

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    Join Date
    Nov 2009
    Cleona, PA

    Interesting read at PA Dept. of Health

    13,500 Wilkes Vinyl AG (15'x30' rectangular)
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    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Interesting read at PA Dept. of Health

    That is interesting. I found several contradictions just in the scan I did of it.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Interesting read at PA Dept. of Health

    My favorite quote "Chorine or bromine kit shall be accurate to within 0.1 ppm", which is kind of extreme but possible. However, they then proceed to recommend a standard DPD chlorine test, which will never come close to meeting that standard.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Join Date
    Mar 2007
    San Rafael, CA USA

    Re: Interesting read at PA Dept. of Health

    They go to extreme with recommending not to use any CYA. They'll tend to have lower CC due to faster oxidation, but at the expense of more nitrogen trichloride which is very volatile and irritating. The immediate rate of disinfection by-product (DBP) production will be higher because of the higher active chlorine level. It would be better to use a small amount of CYA, say 20 ppm, even in indoor pools and have 4 ppm FC and also use supplemental oxidation (UV, ozone, non-chlorine shock, enzymes).
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
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