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Thread: Jacks magic purple stuff

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    Jacks magic purple stuff

    I have a swg and last year I did a ascorbic acid treatment because of metal stains. I bought the purple stuff this year. It says on the bottle I need 2 quarts for start up and then 16 oz. a week for a 20000 gallon pool. Seems like a lot. Any way I could cut back? I would need tons of this stuff to just get through the summer.
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

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    JasonLion's Avatar
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    Re: Jacks magic purple stuff

    It really depends on your metal levels. If I remember correctly the recommended dosage is for sequestering 1.0 ppm of metals in the water. The amount you actually require might be lower or higher. Sequestrant does get expensive. There are less expensive brands, though it takes some experimentation to find one that is both less expensive and just as effective.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Jacks magic purple stuff

    I have a taylor k-2006 test kit. How do I test for metals? Is there a reagent for that?
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

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    JasonLion's Avatar
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    Re: Jacks magic purple stuff

    The K-2006 does not include tests for metals. Separate test kits are available. For Iron try the Taylor K-1716 kit, and for copper either the Taylor K-1730 or the Taylor K-1738.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Jacks magic purple stuff

    What is a more economical brand of sequestering agent?
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

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    Re: Jacks magic purple stuff

    Ethany

    Take a look at the Blue Wave brand of Super Rust & Scale Remover.
    It is an HEDP based sequestering agent at 1/3 the cost of Jack's purple stuff.

    The MSDS lists only a proprietary blend; however, the shipping classification UN 3265 and (1-Hydroxyethylidene diphosphonic Acid)
    Start-up dosage: 15 oz. per 15,000 gallons. Maintenance dosage: 5 oz. per 15,000 gallons.

    4 quarts are around $35 and should last all Summer.

    PSG
    poolschoolgrad

    20x40 free-form IG vinyl, 1hp Hayward superpump, Hayward pro grid DE filter, Raypak heatpump, Goldline Aquarite SWCG, Polaris 280 with booster, and tested using a Taylor K2006.

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