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Thread: Vinyl liner,.. will bleach hurt it?

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    Vinyl liner,.. will bleach hurt it?

    Just a quick question, I seen some of you talking about running bleach in your pool at first...(when you open it) I have a underground pool with a vinyl liner,.. will bleach hurt it??.. Sorry if thats a dumb question,.. but I was looking at running something in the pool while i am waiting for my other pool stuff toget here and bleach sounds like a good idea, but don't want to do it if its going to hurt my liner. I haven't opened the pool for 2 years.. so this is going to be fun to see what I find when I take the cover off this year.

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Vinyl liner,.. will bleach hurt it?

    Any form of chlorine can damage the liner if it is added incorrectly. Full strength bleach poured directly on the liner can damage the liner if you do it often enough. But if you add the bleach properly, which means pouring slowly in front of a return jet with the pump running, then no it won't cause any problems at all.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    poolgirl22's Avatar
    Join Date
    Apr 2010
    Stephens City, VA

    Re: Vinyl liner,.. will bleach hurt it?

    The only stains or color fading I have on my liner is from the gunk the PS sold me and had me add improperly. I'd welcome a bit of fading of SOME things....
    Backyard pool-less, but used to be.....
    16,100 gallon, 18x38 3.5 ft deep oval AG, Vinyl, Sand, 1hp pump Liquidator TFT100 test kit

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    Re: Vinyl liner,.. will bleach hurt it?

    I have a 30,000 gal pool, how much bleach would you put in it?.. and will I need to drain the water when I deside to start putting chlorine in?..

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    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Vinyl liner,.. will bleach hurt it?

    In4sit, In order to know how to answer that question we need to know a lot of stuff about your pool. Since you don't have it uncovered yet there's no way to know what or how much you're going to need.

    Your best bet is to thouroughly read Pool School particularly defeating algae and then become familiar with the pool calculator. You're also going to need a good test kit. Links to all these are in my sig.

    Keep in mind that chlorine is a consummable and therefore isn't a one time addition thing. You have to add sanitizer (chlorine) continuously. There are ways to automate the process.
    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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    Join Date
    Mar 2009
    Huntsville, AL

    Re: Vinyl liner,.. will bleach hurt it?

    What were you using for a sanitizer before?
    27K gal, IG vinyl, 1.5 HP pump, 24" sand filter, Goldline Aqua Plus SWG

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