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Thread: Pool Math conflict

  1. Back To Top    #1

    Join Date
    Oct 2015
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    Katy/Texas
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    411

    Pool Math conflict

    I have been using the Pool Math online application on my iPad for quite some time. Very helpful in understanding the chemistry relationships.

    This morning the app recommended (in the pink section) that I add 97 oz of MA to drop pH from 8.2 to 7.6.

    At the bottom of the app (Effects of adding chemicals) it says that 97 oz of MA will drop pH 1.3. That is twice the drop shown in the pink section of the app.

    Please help me understand the conflicting values.

    Thanks for the crystal clear water in my pool.
    In ground, 14,000 gallon, white plaster, unheated, stone waterfall, DE Filter, Rainbow 320 Cl, Polaris 3900, FloVis flow meter, F100 test kit, Circupool RJ30+ SWG, Circupool VJ1/Speck Badu EcoM3V variable speed pump.

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    Re: Pool Math conflict

    The top takes your actual TA level into account. The bottom does not and makes general assumptions. There is a note by the effects of adding chemicals that says it should not be used for large pH adjustments.

    Trust the top.
    Jason, TFP Moderator
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  3. Back To Top    #3

    Join Date
    Oct 2015
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    Re: Pool Math conflict

    Thanks for the clarification.

    I was confused by the conflicting values.
    In ground, 14,000 gallon, white plaster, unheated, stone waterfall, DE Filter, Rainbow 320 Cl, Polaris 3900, FloVis flow meter, F100 test kit, Circupool RJ30+ SWG, Circupool VJ1/Speck Badu EcoM3V variable speed pump.

  4. Back To Top    #4

    Join Date
    Aug 2014
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    Shallotte, NC
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    693

    Re: Pool Math conflict

    I would suggest, when making large adjustments, to put in half the predicted amount and re-test. It is better to "sneak up" on the goal rather than to overshoot it.

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