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Thread: Discolored vinyl

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    Join Date
    Aug 2016
    Location
    Macon, GA
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    9

    Discolored vinyl

    Start-up was going well, except salt level was stuck 2300-2600, so cell wasn't generating. I was going by the level indicated by the SWG, which must have been malfunctioning. I was only adding salt one or two bags daily. I then added one lb of shock. Next day, the salt jumped to 4100 and the vinyl is discolored, a brackish brown color. It will not scrub off. This is the water chemistry right now:

    salt - 4000
    temp - 76
    FC - 7
    CC - 0
    TC - 7
    CH - 125
    TA - 140
    CYA - 0
    pH - 8.2

    Any observations or suggestions?
    Rexd, 24' X 48" vinyl round pool installed 2007, new liner installed 2012, Doheny 1.5 HP single speed pump installed 2015, Aqua Trol SWG installed 2010, Hayward 200 lb sand filter installed 2010.

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    Mod Squad pooldv's Avatar
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    Re: Discolored vinyl

    It takes 24 hours or more for the salt to fully dissolve and mix into the water. Use bleach to maintain chlorine if the SWG isn't making chlorine. Sounds like you've got some algae now and need to follow the SLAM process to kill it. Be sure to lower PH and add CYA as shown in the instructions before you start.
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    Mod Squad YippeeSkippy's Avatar
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    Re: Discolored vinyl

    I dunno.... I was thinking that with that high pH perhaps they've got iron in the water and it precipitated out of solution? The shock sent it over the edge.......

    Do you fill from a well, Rexd?

    Yippee
    Maddie :) 12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
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    Mod Squad pooldv's Avatar
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    Re: Discolored vinyl

    Yes, that could be a sign of iron precipitating. Please post a pic of the water.
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