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Thread: Sodium carbonate vs bicarbonate

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    Join Date
    Jan 2013
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    Sodium carbonate vs bicarbonate

    I bought a box of this:



    Last season thinking it was sodium bicarbonate. Oops.

    Any chem gurus out there know what the difference is?

    Need to get the TA up... Grabbed this read the box and decoded to post.
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
    One cannot follow Islam and Christianity at the same time, nor can one follow pool store methods and TFP at the same time.
    Pool School -- Pool Math -- TF-Test Kit

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    Richard320's Avatar
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    Re: Sodium carbonate vs bicarbonate

    That will raise the TA a little, and raise pH a lot. It's also known as Soda Ash and sold in fancy packaging for big money in the pool stores as "pH increaser." For your pool, every pound will raise pH .22 and TA 7.1
    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.
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    Re: Sodium carbonate vs bicarbonate

    Ahhhhh. That makes sense. I must have bought it when I was going to acid wash the spa.


    Thank you sir.
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
    One cannot follow Islam and Christianity at the same time, nor can one follow pool store methods and TFP at the same time.
    Pool School -- Pool Math -- TF-Test Kit

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