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Thread: Newbie, need help with Alkalinity Please!

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    Join Date
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    Newbie, need help with Alkalinity Please!

    I am a new pool and spa owner. I dont know a lot of stats...the spa in this case is a 4 person in ground spa. Not sure that matters for this convo. Ask questions if needed, and I will try to answer them. i use a pentair 5 solution test to test the water. Chlorine tests good, pH seems to be good as well, always testing right in the ideal area. when I do the alkalinity test, it seems high. It always takes 20+ drops to change the color of the liquid. Is this something I should be concerned about? We have tried to add some muratic acid, but it doesnt seem to change it one bit.

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    Texas Splash's Avatar
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    Re: Newbie, need help with Alkalinity Please!

    Hello and welcome to TFP! Can a high TA level be a problem? ... yes. How much of a problem depends upon the actual reading compared to current pH and CH levels, and also the type of pool you have. I can't speak for the Pentair testing you are using as it's not one of the TFP-recommended test kits we use (TF-100 or Taylor K-2006), but when TA is confirmed as being too high, we do recommend the acid/aeration method to lower TA. You will find those instructions on the Pool School - Lower Total Alkalinity page. Hope that helps.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    Re: Newbie, need help with Alkalinity Please!

    I have a K-2006 kit, but its a bit overwhelming coming in new...this Pentair kit is a lot easier. I'll get to the Taylor at some point, but it will take some time. You have no idea how much acid I have put in over a few weeks time. I can sometimes get it down to 2000, but thats about as low as it will get.
    Thanks,
    Kevin

    IG Tile/Concrete Pool - 12,000 gal or so, Targus Sand Filter, Pentair single speed pump
    IG Tile/Concrete Spa

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    Texas Splash's Avatar
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    Re: Newbie, need help with Alkalinity Please!

    2000? Humm. That seems odd. With the K-2006 test kit, you should be able to do the following:
    - 25 ML water sample
    - Add 2 drops of R-0007
    - Add 5 drops of R-0008 (green)
    - Start mixing and counting drops of R-0009 until it changes from green to a Barbie pink.
    - Take that number and multiply by 10

    Does that help?
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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    duraleigh's Avatar
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    Re: Newbie, need help with Alkalinity Please!

    this Pentair kit is a lot easier.
    "easier" usually means less accurate.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Newbie, need help with Alkalinity Please!

    I did the steps that Texas Splash outlined above. It took about 20-22 drops of R-0009 to turn the water pink.
    Thanks,
    Kevin

    IG Tile/Concrete Pool - 12,000 gal or so, Targus Sand Filter, Pentair single speed pump
    IG Tile/Concrete Spa

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    Re: Newbie, need help with Alkalinity Please!

    Remember, continue to add drops until the color has absolutely no further change, this can be as much as three drops once the water turns red. I was doing it all wrong until I learned this. As long as a drop affects the color, keep going.


    ~14K gallon - AquaRite AQR15 SWG - pool Newly plastered on April 9 2016
    TF100 kit - STA-RITE SYSTEM3 Modular Media Filtration - Model S8M150
    Pool water supply from on site water well = CH of ~350 and TA of ~350
    Doheny's Discovery Automatic Robotic Cleaner/Pentair Model 011018 VS Pump
    Sundance Altamar Hot tub separate from pool / central Oklahoma

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