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Thread: Does raising the TA with baking soda also affect ph

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    Does raising the TA with baking soda also affect ph

    On a similar note, does raising the TA with baking soda also affect ph, and is there a good way to raise TA without affecting ph?
    20,000L (5,200 gal) round AG pool, Hayward sand filter, 1.5hp pump, in the Laurentians, Quebec Canada
    Pool gets medium amount of sun, due to the house and surrounding trees.

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    Join Date
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    Re: How to raise PH withouth Raising ALK

    Yes adding baking soda will raise TA primarily but it will also raise pH by a small amount. Try playing with the numbers in the bottom of the pool calculator - there's an adding chemicals section where you can see the effects of adding different chemicals. You'll see that the pH is barely affected.

    Edited to try to better clarify that baking soda will raise TA
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

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    Re: Does raising the TA with baking soda also affect ph

    I want to hedge Carl's answer just a little by answering the last part of your question...."is there a good way to raise TA without affecting pH?"

    Yes, baking soda. As you will see from the calculator it has a minimal effect on pH so while the technical answer is yes, it does raise pH, it still remains the correct way to raise TA because the effect is quite small.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Does raising the TA with baking soda also affect ph

    Yeah I wasn't clear with how I wrote it. I tweaked my answer a bit.
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

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