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Thread: Help! Vinyl liner dry and cracking.

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    Help! Vinyl liner dry and cracking.

    Hi all,
    We recently noticed cracking in our IG vinyl pool liner on the side of the pool that is South facing (all sun, all day). There is cracking in two places: a) at the top part of the liner where it goes into the coping and b) about half an inch below where the actual patterned part of the liner is bonded with the upper part (described in "a" above). This cracking continues for several feet along South facing side.

    Having said all that, I have two questions:
    1) Is there some kind of lubricant that needs to be applied to "a".
    2) What is the best method for / best available materials for patching this type of cracking?

    Here's a photo:


    Many thanks,
    Rougarou

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    Mod Squad Bama Rambler's Avatar
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    Re: Help! Vinyl liner dry and cracking.

    There's usually nothing that needs to be added to the liner. Premature liner failure is normally due to chemical abuse.

    A piece of liner and some Boxer glue is the best thing to patch it with.
    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
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    Re: Help! Vinyl liner dry and cracking.

    Thanks for the info. I'm not sure about the chemical abuse, as I am BBB and there is no problem along the other three sides. It looks crackly only on the side that is facing the sun.

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    Mod Squad Bama Rambler's Avatar
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    Re: Help! Vinyl liner dry and cracking.

    How old is the liner?
    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: Help! Vinyl liner dry and cracking.

    Quote Originally Posted by Bama Rambler
    How old is the liner?
    It's about 5 years old. I looked at it again today. It shows no wear, but for about half the length of the pool that gets full sun. All other sides, including corners, look great. Is it possible that we haven't had the water level high enough? Would this help prevent sun damage? Or, could this be a faulty liner?

    Thanks.

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    Mod Squad Bama Rambler's Avatar
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    Re: Help! Vinyl liner dry and cracking.

    Sounds like it didn't have enough UV protection applied when it was made. I would contact the mfg and see what they think.
    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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    X-PertPool's Avatar
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    Re: Help! Vinyl liner dry and cracking.

    303 aerospace protectant will protect the liner from the sun.

    Keeping the water line scum free with a cleaner and using a scum bug helps too
    -Kevin
    X-Pert Pool Service
    x-pertpool.com
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    22,000 gal / 16' x 32' / Vinyl / Hayward s244t /Pentair SuperFlo 1 hp

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