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Thread: New Liner Experience

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    New Liner Experience

    A few years ago, I accidentally punched a few holes in my liner which my pool store patched with extra liner material and glue. It worked well but over time the patches started to lift at the edges. The liner was ten years old. Even with the patched holes, I thought the rate of water loss seemed high. I'd often lose an inch or more a week. Searching the various pool websites largely calmed my fears by attributing such loss to normal evaporation--I live in southern Mississippi. I was adding water every week.

    This summer, I called the outfit that did the patchwork to do a re-patch but they were out of business so I chose the best looking ad from the Yellow Pages and called them. The owner came right out and with 10 years on the liner, suggested that replacing the patches was not a good idea--he recommended a new liner. He said it was probably leaking in many places and would not guarantee a repair.

    So I authorized a new liner.

    When they tore out the old liner, there were places where the old vinyl actually broke apart, it was so brittle. I could hear it snap as they folded up the pieces to haul them away. and the cement at the bottom of the pool was black with mildew from long-term dampness. The installer said I was losing a lot of water through minute, virtually invisible cracks and that water was percolating through the relatively porous concrete used to line the pool.

    With a new liner, I now lose less than 1/4 inch per week. I have yet to add water as normal rain keeps the level at the overflow drain.

    I'll not wait another ten years to replace the liner if I start seeing excessive water loss.
    20,000 gal. Vinyl
    1.5 hp pump 300 lb. sand filter.

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    Mod Squad JVTrain's Avatar
    Join Date
    Feb 2014
    Central Minnesota

    Re: New Liner Experience

    Great advice. Liner life is largely a reflection of the maintenance of the pool, chemically. 10 years is a long time for a liner. Using TFP methods, I'm sure most liners could last that long. Many do not, especially in pool store'd pools.

    Glad you have yourself a new liner. What pattern did you go with?

    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Nectarologist's Avatar
    Join Date
    Apr 2015
    New York

    Re: New Liner Experience

    Good to know. I'll keep this in mind should i start to experience water loss greater than usual.
    Inground, vinyl liner, 16 x 32 (approx. 21k gallons), roman end w/ bench, 2 Jandy LED lights
    Pump: Jandy Flopro, 1.5 hp Heater: Raypak, 266k btu (P-R266-A-EN-C; nat gas) Filter: Jandy C340 (cartridge filter) Robot: Doheny's Dolphin Discovery SWCG: Circupool RJ45

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