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Thread: Tap water test prior to fill

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    Tap water test prior to fill

    FC-2
    PH- 7.4
    TA- 230? 23 drops before red
    CH-310

    My TA seems REAL high. Can that be and what to do about it after fill?
    18,900 Stonescapes Tahoe Blue xtra black, 8 jet Spa, Pentair inteliflo VS , Pentair FNS 60 DE, Inteliclor40, Pentair 400,000 Mastertemp heater, 3 spillovers powered by a Pentair 1 HP whisperflo pump, The pool Cleaner, 2 Intellibright color changing lights and 400 sq ft. of Heliocol roof mounted solar.

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    TimS's Avatar
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    Re: Tap water test prior to fill

    Yes, that is possible. My tap water TA is 240. Read this article in Pool School.
    http://www.troublefreepool.com/pool-...l%20alkalinity
    (Read the rest of Pool School, too. Lot's of good information there.) I'm sure others will jump in here with more advice.

    Basically you're going to need to add Muriatic Acid to lower TA and pH, and then use some method (often aeration) to raise pH back up. It's going to take several iterations to get the TA and pH where you want them.

    Tim.
    24' AG Round (vinyl replaced 0909) - 13500 gal - Sand Dollar Filter (150lb) - Dynamo DYNII-N1-1 1HP - Hayward HP380 Heat Pump - TF-100.
    Central Missouri

    Before I speak, I have something important to say.

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    JasonLion's Avatar
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    Re: Tap water test prior to fill

    dykes26, where do you live?

    If you are in an arid area with high evaporation rates you are going to need to manage your levels quite carefully. TA and CH stay in the pool as water evaporates, and then replacement water raises the levels yet higher. High TA and high CH both tend to cause calcium scaling. You will need to keep your PH under fairly tight control until you can get your TA level down.
    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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    duraleigh's Avatar
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    Re: Tap water test prior to fill

    In addition to Jason's info, there is a possibility of a testing error, too.

    Search "TA testing error" on the forum and you should find a thread ot two explaining how to work around it.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Tap water test prior to fill

    Thanks! I live in Orange County CA. I am going to do the TA error search and then read the article. Thanks!
    18,900 Stonescapes Tahoe Blue xtra black, 8 jet Spa, Pentair inteliflo VS , Pentair FNS 60 DE, Inteliclor40, Pentair 400,000 Mastertemp heater, 3 spillovers powered by a Pentair 1 HP whisperflo pump, The pool Cleaner, 2 Intellibright color changing lights and 400 sq ft. of Heliocol roof mounted solar.

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    Richard320's Avatar
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    Re: Tap water test prior to fill

    Quote Originally Posted by dykes26
    FC-2
    PH- 7.4
    TA- 230? 23 drops before red
    CH-310

    My TA seems REAL high. Can that be and what to do about it after fill?
    Yes, that can be. Take a look at your showerhead. Is it white and crusty? How about the inside of the coffee maker?

    I have no idea what to do about it, I'm still learning. Maybe get a water softener for the initial fill?
    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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