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Thread: Found a piece of gravel under vinyl liner

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    Found a piece of gravel under vinyl liner

    I was fooling around in the deep (7ft) end of the pool last night when I noticed a small irregularity in the surface at the bottom between the main drains. I'm 99.9% convinced its a 1/2" to 3/4" piece of gravel. Unfortunately it's got a pretty sharp point sticking up and it's just a matter of time until it punctures the liner. There's no foot traffic at this location but our Polaris 280 will drive over it about a billion times so I'm sure it's gonna need fixing. I actually found a total of 3 stones however the other 2 are smaller than a pea and are relatively smooth. Pool bottom is vermiculite. I know the walls and steps have 1/8" foam padding but I can't tell on the bottom as I suspect water pressure may have completely compressed any foam.

    I plan to call my builder Tuesday morning after Memorial Day and I'm under the assumption that since this is a "build flaw" he should come out and fix it free of charge. Is this an unrealistic expectation. What's the going rate for a repair like this. I could probably fix it in 5min with a vinyl patch and a cheap Snuba unit but I digress. Any advice would be appreciated.
    22 x 36 In Ground Vinyl - 23K Gal - Saltwater - Tara Liner
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    Isaac-1's Avatar
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    Re: Found a piece of gravel under vinyl liner

    I am just not sure what sort of "fix" you expect, I doubt they would replace the whole liner for a bit of gavel that may one day wear through the liner. They might cut it out and place a patch there, but why patch before you need to, who knows with it in the deep end it may outlast the liner.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Re: Found a piece of gravel under vinyl liner

    Yeah, I guess I wasn't specific. The fix I was alluding to would be a small incision to remove the stone and a ~1" blue or clear circular vinyl patch. I'm not sure what rate it would leak at when it finally ruptures but I don't want the burden of having to check it. It would kinda suck to leave it there and for water to be slowly saturating the ground around the pool. Again, I'm just kinda thinking out loud.

    Note: I'd never expect a brand new liner or for the entire pool to be drained and liner reinstalled because of a single stone. I'm not that guy.
    22 x 36 In Ground Vinyl - 23K Gal - Saltwater - Tara Liner
    1hp 2-speed Hayward Super Pump, Hayward 6060 Booster Pump
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    Melt In The Sun's Avatar
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    Re: Found a piece of gravel under vinyl liner

    I think your little incision plan is the right way to go if you want to patch it now.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
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    Isaac-1's Avatar
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    Re: Found a piece of gravel under vinyl liner

    In my experience over the last 30+ years living with a vinyl liner pool, glue on patches are only good for about 5 years before they start peeling up around the edges, with care a liner can last 10 years or more. This is why I suggest waiting for a problem before patching.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Re: Found a piece of gravel under vinyl liner

    If the stone is not a problem by itself and the only concern in the stone poking a hole in the liner.....why not place a patch over the stone without removing it to increases the thickness of the liner offering some protection. Ideally, I like the incision idea as well.
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    Re: Found a piece of gravel under vinyl liner

    I had one under my old liner that was there for five years that I know of, but we suspected the liner to be 10 + years old. I just replaced the liner last month & we found about half a dozen very small leaks & none came from where the gravel was. I understand where you're coming from though. I'd make a point to tell people not to step where it was & would swim down often to check it out. When the guys were out removing the old liner, I couldn't wait to get in there & pull that pesky piece up.
    26,000 Inground Vinyl, 16' x 32'. Pentair Intelliflo SVRS, with 30" Hayward Pro Sand filter.

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    Re: Found a piece of gravel under vinyl liner

    Putting an incision in a vinyl liner intentionally is a really bad idea, best to wait till fall before you winterize if you do that where you are drain enough water to get under and remove. Just mho but we have been doing vinyl for 30 years.
    Over 30 years in the pool business
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    Re: Found a piece of gravel under vinyl liner

    I'm sorry, but having been part of my grandparents pool company crew we took great care in avoiding this. I am hearing/seeing to much of this lately. A very thorough inspection prior to liner drop could avoid a great deal of this and when working wrinkles out, if any found it could be addressed prior to completion. I am not "that guy" either, but just putting $45k into an in ground vinyl it is upsetting. I am also plagued by this, but a little worse. 6+ in the shallow end of what I have found and one is already broken through (very sharp). I really struggle with accepting several patches in areas of foot traffic. I still await action from my PB, so I wish you luck.

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    Re: Found a piece of gravel under vinyl liner

    Quote Originally Posted by BadOleRoss
    If the stone is not a problem by itself and the only concern in the stone poking a hole in the liner.....why not place a patch over the stone without removing it to increases the thickness of the liner offering some protection. Ideally, I like the incision idea as well.
    I agree with this idea, patch over the stone without incision, then when/if the stone pops through the liner the patch still holds the water and gives many more years.
    DIY 18x36 IG Vinyl Rectangle with 2 foot radius; Steel Walls. 8' steps w/t 2 step jets; 2 MD, 1 Skimmer, 2 returns; Hayward Pro Series 24 Inch 300# Sand Pool ; Hayward color logic 4.0 LED light; 2" PVC pipe 4 Jandy Valves, Hayward PL-P-4, SWCG

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