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Thread: Dark round stain the size of quarter

  1. Back To Top    #1

    Join Date
    May 2010
    Central Connecticut

    Dark round stain the size of quarter

    in 2 spots on the bottom of our IG vinyl pool, there are 2 dark round stains. Tried to scrub them off with no luck. Any idea what causes it ?

    .. it was found when we opened the pool after the winter.

    Also, Any ideas on how to remove?

    18x36 IG 26,000 gal, Vinyl Liner, 24" Sand filter Hayward S224T, Jandy AE3000 heatpump and 1.5 HP SuperPump. Circupool RJ45 SWG

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Dark round stain the size of quarter

    Oops just realized it's a vinyl pool. Hopefully someone will be along that can help.
    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
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3

    Join Date
    Jul 2007
    NW FL

    Re: Dark round stain the size of quarter

    Could something metal have blown in the pool? We had to have our roof replaced winter 2004 after a hurricane. The following month a storm blew some loose roofing nails into the pool and left stains much like those you describe. I just had to live with it until time to replace the liner. (Now!)
    23K gal., kidney IG vinyl, 3/4 HP pump, sand filter, Baracuda G2

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