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Thread: vinyl over gunite

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    vinyl over gunite

    My pool is gunite with a vinyl liner. If my liner needs to be replaced, can I just leave it as gunite?
    21000 gal vinyl lined in ground
    36 sq. ft. DE filter with Hayward 1.5hp VSP
    SWG chlorine
    Massachusetts

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    Re: vinyl over gunite

    Are you sure it is gunite, and not pool crete? Pool crete needs a liner over it or it will fail fairly quickly.

    Gunite is normally covered with pool plaster. Gunite alone is not waterproof, ie gunite alone will leak. Pool plaster could be added over the gunite if you don't have it already, though that will cost rather more than replacing the liner.
    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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    Re: vinyl over gunite

    Got the original plans from the installer and it did say gunite but did not mention plaster. If there is plaster would it be better left unlined or does it not matter either way ?
    21000 gal vinyl lined in ground
    36 sq. ft. DE filter with Hayward 1.5hp VSP
    SWG chlorine
    Massachusetts

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,077

    Re: vinyl over gunite

    My bet is that liner is there for a reason and not replacing it without knowing that reason could be VERY troublesome.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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