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Thread: Pool Staining Question

  1. Back To Top    #1

    Join Date
    Jul 2014
    Location
    Long Island, NY
    Posts
    22

    Pool Staining Question

    IG vinyl pool hasn't been opened in 4 yrs. Water finally clear(ish) and debris removed. There are stains on bottom of liner (deep and shallow) as well as the sides of pool. No amount of brushing made any change. I assumed (i know, i know) that they were organic but on whim I bough Vitamin C tabs today, dropped on a stain and voila - GONE. I then dumped a handful into a sock and started scrubbing the walls, again - ERASED.

    I know this is a newbie question but due to the fact that the vitamin C produced instant erase results of the stains, is it fair to assume that the stains are not organic? If so, what should my next step be to rid the pool of ALL stains. Yes, sock scrubbing with handfuls of Vitamin C would be comical but obviously not realistic.

    I ordered the TF-100 on Tuesday and should arrive shortly. Below are the test result from the PS as of this morning.

    FAC and TAC - 5 (could very well be higher but PS readings cap at 5)
    pH - 7.4
    TA - 90
    CYA - 30
    CH - 150
    TDS - 350
    Phos - 0

    Any and all advice on the stain removal would be much appreciated. Thanks in advance!
    16 x36 IG Vinyl ~ 21,000
    Filter - Hayward Pro Series HR Sand Filter Model # S244T
    Pump - Hayward RS 1,000 1HP
    Hayward Chlorine Feeder

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Pool Staining Question

    Sounds like the stains are metal if Vitamin C removed them.

    You need to do an Ascorbic Acid treatment and then regularly use sequestrants: http://www.troublefreepool.com/conte...d-metal-stains
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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  3. Back To Top    #3

    Join Date
    Jul 2014
    Location
    Long Island, NY
    Posts
    22

    Re: Pool Staining Question

    Thank you for the reply. I read the info in the link you sent me and googled where to buy ascorbic acid. Is it sold under a different name that I can buy locally at at B&M store. I want to be aggressive with this and don't want to wait for an online order.
    16 x36 IG Vinyl ~ 21,000
    Filter - Hayward Pro Series HR Sand Filter Model # S244T
    Pump - Hayward RS 1,000 1HP
    Hayward Chlorine Feeder

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