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Thread: Liner Issue - Bump/Protrusion

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    Liner Issue - Bump/Protrusion

    I just opened my pool and I noticed a protrusion in the liner of my pool. I had this liner installed within the last 3 years. It is a sunken above ground pool. it is concrete bottom with wood on the sides with a custom vinyl liner (very expensive!). The protrusion is on the bottom of the pool on the angle down to the deep end. I didn't really notice it in the past, so I think this may be new. It looks to be about 2-4 inches wide, but I haven't gone in yet to inspect further.

    I am not really sure what it could be since this is a concrete bottom. I poked at it with my pool brush and it seemed pretty solid. I dont have any nearby trees that would be causing the issue with roots. When the company installed this liner they did some concrete work, nothing major but I think it was just to make it smoother for the liner. See links below for a couple of pictures.
    IMG_0757 1_zpswucvvwqu.jpg Photo by dellapor | Photobucket
    IMG_0756_zpscmf5spmt.jpg Photo by dellapor | Photobucket

    Any ideas what could be causing this? I am afraid whatever it is is going to bust thru the liner.
    I have a 35,000 gallon, sand filter, sunken above ground (so inground), vinyl liner, with an Aqua rite turbo cell SWG

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    Isaac-1's Avatar
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    Re: Liner Issue - Bump/Protrusion

    Could it be a root from a nearby tree?
    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: Liner Issue - Bump/Protrusion

    There are trees in the lot next door but this bump is on the side closest to house so I doubt that's the issue. It would have to go all the wayunderneath the pool and pop out on other side. And even then the tree is pretty far away from the pool

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    Isaac-1's Avatar
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    Re: Liner Issue - Bump/Protrusion

    No idea then, sink holes are far more common under vinyl liners
    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
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

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    Re: Liner Issue - Bump/Protrusion

    thanks for the input Isaac, I am hoping whatever it is miraculously goes away. I am afraid its going to poke thru my liner and if that happens there is no way I will be able to replace it again.
    I have a 35,000 gallon, sand filter, sunken above ground (so inground), vinyl liner, with an Aqua rite turbo cell SWG

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    Isaac-1's Avatar
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    Re: Liner Issue - Bump/Protrusion

    If it does poke through then maybe you can see what it is / remove it then patch 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
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

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    Re: Liner Issue - Bump/Protrusion

    So you can patch an area that big, like 3inches around? I have never had to patch before so curious if that would be a legitimate option. Just trying to alleviate any unnessecary stress because the last liner set me back quite a bit!
    I have a 35,000 gallon, sand filter, sunken above ground (so inground), vinyl liner, with an Aqua rite turbo cell SWG

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    Isaac-1's Avatar
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    Re: Liner Issue - Bump/Protrusion

    Yes, it is possible to patch something that size
    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
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

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    Re: Liner Issue - Bump/Protrusion

    wow what a relief!!! thanks again for your input!!!
    I have a 35,000 gallon, sand filter, sunken above ground (so inground), vinyl liner, with an Aqua rite turbo cell SWG

  10. Back To Top    #10

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    Re: Liner Issue - Bump/Protrusion

    Hi everyone, popped off the pool cover today and noticed some more of the tennis ball shaped bulges. What the heck could be causing these? The liner is only a few years old. The last one was like 12 years old and there were no bulges at all. Definitely not an issue with roots here. I am so confused!
    I have a 35,000 gallon, sand filter, sunken above ground (so inground), vinyl liner, with an Aqua rite turbo cell SWG

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    Re: Liner Issue - Bump/Protrusion

    Too cold to get in and feel it? (I'm guessing it is, but that may be the only way to know for sure wheat it feels like.)
    26' X 52" Intex Ultra Frame. Intex Sand Filter
    26' X 52 Intex Ultra Frame Install
    You can lead a horse to (clear) water, but you can't force him to swim in it!

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    Re: Liner Issue - Bump/Protrusion

    A couple of them were there last year, they are rock hard. Definitely too cold right now!
    I have a 35,000 gallon, sand filter, sunken above ground (so inground), vinyl liner, with an Aqua rite turbo cell SWG

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