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Thread: How to set up for water removal behind liner on a 15year old

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    How to set up for water removal behind liner on a 15year old

    I have a older vinyl liner pool that we just replaced the liner. We are not the original owners. After a heavy rain the liner is beginning to float. I now know we have nothing wet up to remove or pump out this water. What and how can I install something to help prevent this?

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    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: How to set up for water removal behind liner on a 15year

    Welcome to tfp, blancc

    Have you had an unseasonably rainy spring? If so, then hopefully the water will recede soon and the water behind the liner with it. If not, then a dry well may need to be installed. Basically you put a pump down a hole near your pool at or below the bottom of it that then pumps water away from the pool area.

    You never had this problem with your old liner? Was the new liner installed while the ground was wet?
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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

    Re: How to set up for water removal behind liner on a 15year

    The liner will only float if the local water table is higher than the water level in the pool. The first thing to do is to raise the water level in the pool as high as you can reasonably raise it.

    Assuming your water level is already reasonably high, to really fix the problem permanently, you need to provide some kind of drainage system so that the local water table doesn't get that high. Typically underground drains are installed that drain water away to somewhere lower than where the pool is. Another option is to use sump pumps installed in well points around the pool. Doing either of these after the pool is complete can get quite expensive.
    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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