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Thread: When to install a new liner

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    When to install a new liner

    Hello everyone,

    We have an 18'X40' inground vinyl liner pool, and live in Southern Ontario. A few weeks ago, when we were out of town, a leak sprung in the liner, and the pool had dropped a couple feet by the time we had returned.

    We were planning on replacing the liner anyways, so pumped out the pool. I've since been "distracted" by another project, and our pool has sat empty, with the old liner in it still.

    My question is, should we replace the liner now, and fill it, even though it is doubtful we'll be able to swim in it again this season, or leave it until the spring?

    My worry with leaving it is that the winter might cause the walls to shift.

    The pool has been in place over 30 years if thats a factor.

  2. Back To Top    #2

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida
    Hi, Rob,

    Seems I've heard from others living in Canada that IG pools are troublesome up there because the frost line is so deep.

    Then it would seem like leaving a drained IG pool over the winter would be a real problem. My thought would be to refill the pool back up to the leak point to keep it in the ground and in shape 'til late Spring when you can drain and replace the liner.

    I'm out of my league if it gets much below 25F so certainly wait until you get a more "northerly" opinion.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Mar 2007
    Ontario, Canada
    If you refill the pool again with the old liner you may risk ripping it even more as it has likely shrunk and refilling will
    stretch it out. I am not sure if you run the risk of your pool heaving due to the lack of weight and the winter frost.
    I would get a new liner installed this year and fill, but you may want to discuss it with your local PB on the best senario.

  4. Back To Top    #4
    TFP Guide

    In the Industry

    Join Date
    May 2007
    New Brunswick Canada
    I am in agreement with Crazy....if the heaving freeze sets in..water table could cause trouble with your walls and cave them in, put the liner in now, fill and no worries.

  5. Back To Top    #5
    NWMNMom's Avatar
    Join Date
    Apr 2007
    Waaay NW MN
    I agree - frost can do nasty things and your pool is not what it was for the past several years. Change the way your pool is and you will change the way the frost treats it.
    18x33x52 Buttressfree Seaspray (Wilbar) AGP - 1.5hp Pentair Maxim w/22" Pentair Meteor Sand Filter, Aqua Rite SWG System, Biltmore Walk In Steps - 2/4x20 Solar Panel Setup - Doheny Jet Drive (RIP -Pool Rover Jr) - finally hard plumbed the whole darned thing -
    Beats Driving to the Lake!

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