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Thread: chlorine level after AA treatment

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    chlorine level after AA treatment

    15000 gal. pool treated 8days ago with 2lbs AA, Stain cleared well but cant get chlorine level to hold. I treat with chlorine at 6am, 4pm, 7pm, 10pm and more often if home. Would have thought the AA would be neutralized by now. Im I being too impatient? How long should I expect this to take?
    24' ABG 15,000 gallon. Installed 2005, AquaTrol SWG installed 2015 Pentair 1.5hp pump, 200#sand filter
    Blue Springs, Mo.

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    Mod Squad Bama Rambler's Avatar
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    Re: chlorine level after AA treatment

    Just keep adding chlorine. Sometimes it takes a while, but it'll start holding soon.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: chlorine level after AA treatment

    chlorine is finally starting to hold but the stain appears to be coming back. Mostly on steps and plastic fittings. Checked ph and it was up to nearly 7.4 so dropped it back down to 7.1 and added more metal free. Beginning to wonder if Im going to battle this all summer.
    24' ABG 15,000 gallon. Installed 2005, AquaTrol SWG installed 2015 Pentair 1.5hp pump, 200#sand filter
    Blue Springs, Mo.

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: chlorine level after AA treatment

    Metal Free is not one of the recommended sequestrants. Sequestrants based on HEDP, phosphonic acid, or phosphonic acid derivatives are far more effective. ProTeam's Metal Magic and Jack's Magic The Pink Stuff (regular), The Blue Stuff (fresh plaster), and The Purple Stuff (salt) are some of the top sequestrants. You can also find many other brands with similar active ingredients, some of which are noticeably less expensive.
    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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