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Thread: Pool calculator help

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    Join Date
    May 2011
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    Hardy, Virginia
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    Pool calculator help

    I don't think I'm understanding what I should do. Here's my test results:
    Fc 15 (finishing a shocking process)
    Cc 0
    Ph 7.6
    Ta 150
    Ch 40
    Cya 45

    I'm wanting to bring down my ph so that i can get my ta down. The pool calculator says add 6.6 oz volume dry acid, but when i plug that in it shows that it will barely change anything. Does the option at the bottom of the calculator want oz in weigbt or volume?
    15' wide x30' long x 4.5' deep vinyl above ground, 13,500 gallons, hayward dream line sand filter, hayward power-flo lx pump 1.0 hp, lil shark cleaner

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    Re: Pool calculator help

    Why would you want to bring that down?
    69,000 Gal gunite indoor IG pool.
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    duraleigh's Avatar
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    Re: Pool calculator help

    Kirsten,

    Just leave it alone. Control your pH with mutiatic acid (if it rises above 7.8) and check your TA occasionally.....it'll sl-o-w-ly drift lower on it's own
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    JasonLion's Avatar
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    Re: Pool calculator help

    Separately from the other comments, you shouldn't try to adjust the PH when FC is above 10. High FC levels can throw off the PH test results. Wait until FC comes down before making any PH adjustments.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Pool calculator help

    Quote Originally Posted by Linkterfur
    Why would you want to bring that down?
    I thought my TA was too high.

    I will leave it alone until my FC is under 10.
    15' wide x30' long x 4.5' deep vinyl above ground, 13,500 gallons, hayward dream line sand filter, hayward power-flo lx pump 1.0 hp, lil shark cleaner

  6. Back To Top    #6
    Mod Squad jblizzle's Avatar
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    Re: Pool calculator help

    TA really only buffers the pH. Having it high can tend to make the pH rise. If you are not having a problem with pH rise and having to add acid all the time to lower the pH, then there is no need to worry about it.
    Jason, TFP Moderator
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