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Thread: T/A (Total alkalinity) level & CH

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    jgjh151's Avatar
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    May 2012
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    Glenville, NY
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    T/A (Total alkalinity) level & CH

    TA is reading 160, can we swim in this today or should I lower it first? Is the CH of 250 something to worry about before swimming as well?

    PH was a little high last night so I added pHDown..maybe that raised the TA?

    Latest readings:

    FC: 7.5
    CC: 0
    pH: 7.5
    T/A: 160
    CH: 250
    CYA: 55
    Temp: 84
    Thanks,
    Jon

    ======================

    21,000 gallons, Hayward sand filter, IG, 16x32 kidney, Vinyl, Hayward Super Pump 1hp, Flow rate: ?

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    Richard320's Avatar
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    Re: T/A (Total alkalinity) level & CH

    Go swimming!
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    JasonLion's Avatar
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    Re: T/A (Total alkalinity) level & CH

    CH at 250 is just fine for any kind of pool. TA at 160 is a little high, but can be ignored unless CH is 500+ or your PH is going up annoyingly quickly.
    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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    jgjh151's Avatar
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    May 2012
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    Glenville, NY
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    Re: T/A (Total alkalinity) level & CH

    Great! Thanks for the input.
    Thanks,
    Jon

    ======================

    21,000 gallons, Hayward sand filter, IG, 16x32 kidney, Vinyl, Hayward Super Pump 1hp, Flow rate: ?

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