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Thread: Using Sodium Erythorbate for Stain Removal

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    Using Sodium Erythorbate for Stain Removal

    I'm getting ready to use citric acid to remove what is probably some manganese stains in my pool. In the past I have used an effective stain removal chemical from my pool store guy that he said was sodium erythorbate. However, I've never seen any reference to sodium erythorbate in any stain removal discussions. Does anyone know if this is correct or have any experience with sodium erythorbate as a stain removal chemical. One source indicated that "sodium erythorbate are chemical isomers of ascorbates". Ascorbates are apparently a salt of ascorbic acid. I think this one needs a chemist involvement.
    20K IG Plaster SWG with Spa, Sand Filter, 2HP Pump, New Orleans, La

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    stev32k's Avatar
    Join Date
    Mar 2009
    Mobile, Alabama

    Re: Using Sodium Erythorbate for Stain Removal

    I would be a little hesitant to use citric acid if you have calcium in your pool. It can form calcium citrate which is insoluble in water and I'm not sure if it would scale up or just fall out of solution. I don't have any experience with sodium erythorbate so can't help you there.
    20' x 40' IG with vinyl liner volume approx. 35,000 gal.1.5 H.P. main pump, Polaris 280 cleaner W/ 3/4 H.P. booster pump
    Hayward sand filter, 3.14 sq ft, 62 gpm. Stenner 45 MPH10 chlorine feed pump. 1 micron final filter bags (home made and very effective)

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Using Sodium Erythorbate for Stain Removal

    A lot of people have used citric acid without problems at this point. If calcium citrate is a problem, it certainly isn't very common.

    I don't know anything about sodium erythorbate except that it appears to be a reducing agent so it is plausible that it could work.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Join Date
    Jul 2010
    Double Oak, TX

    Re: Using Sodium Erythorbate for Stain Removal

    I recently tried to use sodium erythorbate under the advice of a pool professional to remove organic stains created by a large accumulation of crepe myrtle flowers & seeds. Unfortunately it did not solve my problem.
    35K gallons, StaRite S8D110 DE Filter, Pentair IntelliFlo vs3050 pump, IG gunite

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Using Sodium Erythorbate for Stain Removal


    Chlorine is almost always effective against organic stains. It may take more than amonth in some cases but higher than normal levels of chlorine would be my first attempt to remove anything organic.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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