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Thread: Iron stain issue

  1. Back To Top    #1

    Join Date
    Feb 2012
    Frisco, Texas

    Iron stain issue

    I have Oklahoma Flag stone coping... I developed an iron stain below the tile line on the pebble tech plaster from water dripping down off the stone.. Pool builder used Muratic acid on the stain, but it only made it darker.. Instead of light redish brown stain, it's now almost black.. Any way to fix this? The stain is below the water line
    22,000 Gallon, IG, 608 sq feet, 114 feet perimeter, Tahoe Blue Pebblesheen Plaster, Jandy 60 Sqft DE filter, Intelliflo SVRS pump, Jandy PDA4, 2 Jandy LED Pool Lights, Letro Autofill, Polaris 280 with booster pump, Rainbow 320 Chlorinator, Nature 2 in-line, 3 ft sheer decent, bubbler on tanning shelf, 472 sq feet seeded aggregate deck, Oklahoma Flag stone coping

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Iron stain issue

    If it is a metal stain, you can try rubbing a vitamin C tablet directly on the stain. Or you can use ascorbic acid if the stain is too big to deal with by hand.
    The muriatic acid will not work on metal stains.

    From Pool School: pool-school/metal%20stains
    Jason, TFP Moderator
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