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Thread: Iron staining

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    Iron staining

    I have a new fiber glass salt water pool. I installed the mesh safety cover over the pool. After about 3 weeks took it off & found discoloration to fiber glass. The chlorine level went to 18 & PH got to 8.0. Did a vitamin c test, stain went away.
    My readings now are:
    PH 7.2
    FC 6
    CC Less Than .5
    TA 50
    CH 200

    I have ordered Ascorbic Acid & Jacks Purple Stuff.
    My questions are:
    1. Should I get this cleaned up now or wait for spring start up? My pump will run 1 hour per day & durning freeze conditions:
    2. If I keep Chlorine & PH levels in control will this keep this from happening or am I going to have to have to add Jack's purple Stuff weekly?
    IG: 11' x 26' Fiberglass (6,700 Gallons), Hayward 1 HP 2 Speed Pump, Hayward Sand Filter, P4 Aqua Logic Controller, T-15 Salt Cell. TF-100 Test Kit

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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
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    SouthWest Alabama
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    Re: Iron staining

    Since the vitamin C test worked it's metal staining and I'd suggest you treat it now and keep a maintenance sequestrant level and the pH in the lower 7's. Since there are metals in the water you'll have to maintain the sequestrant until you can replace the water with metal free water. Do you know where the metals came from?
    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

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    Re: Iron staining

    I have spring Water (Well)
    IG: 11' x 26' Fiberglass (6,700 Gallons), Hayward 1 HP 2 Speed Pump, Hayward Sand Filter, P4 Aqua Logic Controller, T-15 Salt Cell. TF-100 Test Kit

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,082

    Re: Iron staining

    Yep, I agree with bama.....do it now.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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