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Thread: Lowering alkalinity

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    Join Date
    Oct 2013
    Location
    Baton Rouge, LA
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    86

    Lowering alkalinity

    Hi guys here are my numbers for my swg pool...

    fc-4.5
    cc-0
    ak-130
    ph-7.8
    ch-40
    cya-65


    Im raising cya to 70-80 at the moment, ill be adding acid to lower ph but what should i do about TA? What is the best way to lower? I read in pool school for a swg i shold have it around 70-80 i believe.
    30,000 gallon In-Ground vinyl, small fountain, Polaris 9300 robotic cleaner

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    JasonLion's Avatar
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    May 2007
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    Re: Lowering alkalinity

    The simplest way to lower TA is to simply lower the PH to 7.2 any time it gets to 7.8. If the PH goes up too quickly you can lower TA more aggressively, as described in Pool School How To section. But generally that is not required.
    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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    Mod Squad woodyp's Avatar
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    Re: Lowering alkalinity

    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  4. Back To Top    #4

    Join Date
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    Baton Rouge, LA
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    Re: Lowering alkalinity

    Ok i adjusted it to around 7.5 but i quickly rose up to around 7.8 or higher. From reading forums i understand that is bc i have a high TA for a swg i assume. So as if i lower my ph to 7.2 it will lower my TA as well?

    - - - Updated - - -

    Oh ok got it. Thanks for the post, i read it earlier but didnt read the whole thing lol.
    30,000 gallon In-Ground vinyl, small fountain, Polaris 9300 robotic cleaner

  5. Back To Top    #5

    Join Date
    Mar 2014
    Location
    Orlando, FL
    Posts
    35

    Re: Lowering alkalinity

    Yes, lowering your pH with acid will also lower your TA. You will likely have to do this several times to get the TA in the range you want. As woody mentioned, see this link and it will tell you what to do: http://www.troublefreepool.com/conte...tal-alkalinity
    15k gal, Pebbltec. Built in 2004. 2 HP Pump, Cartridge Filter, Hayward SWG, Hayward Navigator Cleaner, TF-100 / Orlando, Florida

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    Mod Squad woodyp's Avatar
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    Apr 2010
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    Re: Lowering alkalinity

    .............."i read it earlier but didnt read the whole thing lol." Shame on You!
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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