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Thread: White powder on Luedersstone around fire pit

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    White powder on Luedersstone around fire pit

    About a year into having our pool installed I am seeing a white powder buildup on the top of the ring of Luedersstone coping around our fire pit. It's on the inner half of that circle, above the fire bricks. I'm guessing that salts are migrating up from the bricks through the Luederstone and forming on the top. There is no issue with the Luederstone coping around a nearby planter or the pool coping. Is there anything I can do to rectify this? -Pete
    15,000 gallons IG pebble, Sundek plus Luederstone, Pentair FNS Plus 60 DE filter with SM-20-2 valve, Pentair Intelliflow VS pump, Pentair EasyTouch 4 panel, Pentair KreepyKrauly Platinum cleaner, Stenner 45M fixed 10 GPD pump with 15 gallon tank, new pool startup 10/2012

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    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: White powder on Luedersstone around fire pit

    Without a pic, it's pure guesswork as to the cause. Muriatic acid will surely clean it up but won't solve the cause.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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