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Thread: Stain ID

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    coog61's Avatar
    Join Date
    Nov 2009
    Richmond, TX

    Stain ID

    Have started to have staining in my 2 yr old SWG pool (Sunstone finish). Stains are either dime sized or 1-2 inch streaks. Have tried both scrubbing with the lemon/Vit C tab and with a chlorine puck. Strangely have not noticed much difference with either. Pic is attached.

    FC - 5 ppm
    CYA - 45 (but raising to 80 today)
    ph - 7.5

    Any ideas if metallic or organic stain? Then course forward?

    17,500 Gallon, SWG 33' x 21' freeform w/ Sunstone Cobalt Plaster. Attached 6 X 6 Spa raised 12" w/ 6 Jets with Moss Rock Spillover. 25' Moss Rock Waterfall. Pentair Intelliflo VS-3050 for Pool, 2 HP Whisperflo for Waterfall, Pentair Clean & Clear Cartridge 320, Pentair 400K BTU Max-E-Therm heater, Pentair Intellichor, Pentair EasyTouch 4P, Pentair Legend Platinum Cleaner w/ 3/4 hp pump, autofill system, nat gas fire pit. BBB convert

  2. Back To Top    #2

    Join Date
    May 2007
    South Central NJ

    Re: Stain ID

    Those really look like iron. Try the Vitamin C again and let them sit a little longer, with the system off to reduce water's movement.

    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

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