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Thread: fiberglass pool stains

  1. Back To Top    #1

    Join Date
    May 2009
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    Trenton NJ
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    497

    fiberglass pool stains

    I have a 20,000 gal inground fiberglass pool and tha past couple years we had problems with staining. The walls are stained,just looks like they are dirty. We brush all the time but they remain on the walls. Any idea's, help would be appreciated.
    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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    frustratedpoolmom's Avatar
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    May 2007
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    SWSuburban Chicago, IL
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    Re: fiberglass pool stains

    Well, it could be a few things, but I suspect its from the N2.

    You need to test the stain with Vitamin C tablet or Dry Acid in a sock...

    Read these three articles:

    http://www.troublefreepool.com/alter...uth-t3025.html
    http://www.troublefreepool.com/ascor...ins-t2298.html
    http://www.troublefreepool.com/pool-...metal%20stains

    Hope this helps. Be prepared, there's a lot of info there, I don't mean to overwhelm you.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  3. Back To Top    #3

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    May 2009
    Location
    Trenton NJ
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    Re: fiberglass pool stains

    Where can you buy ascorbic acid by the pound and also poyquat 60?
    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

  4. Back To Top    #4
    frustratedpoolmom's Avatar
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    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: fiberglass pool stains

    Quote Originally Posted by ethany
    Where can you buy ascorbic acid by the pound and also poyquat 60?
    There are links in the second article I posted above, for AA. Also PQ 60 can be purchased online or at the pool store, just make sure it's PQ 60 and not a substitute.

    You need to confirm what the stains are before you go down that road, if it's copper that process won't help, and might make the stain worse.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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