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Thread: 2-phosphono-1,2,4-butanetricarboxylic acid?

  1. Back To Top    #1

    Join Date
    Jun 2010
    Location
    Washington, DC
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    56

    2-phosphono-1,2,4-butanetricarboxylic acid?

    I was hoping someone can answer my question. Before I went BBB the pool store told me to put 2 1/2 16 oz. Biogard Scale Inhibitor into my pool. My guess is because my CH was pretty high. My trusty TF-100 measured my CH after I put the scale inhibitor in at 630. The ingredient is 2-phosphono-1,2,4-butanetricarboxylic acid. Does someone know what this is supposed to do? Reduce scaling? I am not about to buy this again I'm just curious.

    Thanks.
    Pool size = 24,000 gal.; rectangular 3 ft shallow, 8 ft deep
    Jacuzzi Sand Filter (can't find the model) flow rate 60, Pentair Super Flo, 1HP
    Pool is inground/indoor and white plaster, TF-100 Kit

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    Feb 2008
    Location
    Denton, TX
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    5,061

    Re: 2-phosphono-1,2,4-butanetricarboxylic acid?

    From what I was able to gather, it looks to be a metal sequestrant. Sequestrants are used to bind up metals in the water to prevent scaling and staining.

  3. Back To Top    #3

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    Aug 2008
    Location
    Honolulu
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    429

    Re: 2-phosphono-1,2,4-butanetricarboxylic acid?

    This might help, I think it is the same chemical:

    http://www.chem.unep.ch/irptc/sids/O...S/37971361.pdf

    Seems ok for scaling, will degrade in sunlight but how fast you might want to ask Chem Geek. CyA at 60 -80 ppm might help slow sunlight breakdown but again only a test would show.

    Good Luck.
    10,000 gal plaster pool,3/4 hp WhisperFlo pump, Sta-Rite Great White GW9500 pool cleaner, Hayward 300 lb Sand Filter
    Use Magenta Stuff for Iron and Silica control.
    Balance: pH 7.7 Cl 7 -8 Alk 70-80 CH 325 CyA 30 in winter - 50 in summer NaCl 1010 TDS 1200

  4. Back To Top    #4

    Join Date
    Jun 2010
    Location
    Washington, DC
    Posts
    56

    Re: 2-phosphono-1,2,4-butanetricarboxylic acid?

    Thank you both for your quick replies. It is not cheap. One treatment cost me $50 bucks. I wonder if it helped at all.
    Pool size = 24,000 gal.; rectangular 3 ft shallow, 8 ft deep
    Jacuzzi Sand Filter (can't find the model) flow rate 60, Pentair Super Flo, 1HP
    Pool is inground/indoor and white plaster, TF-100 Kit

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