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Thread: should there be a "lump" under liner at the seam

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    should there be a "lump" under liner at the seam

    might be a silly question but I just noticed after 2 months the seam where the pool joins together (the wall not the liner seam) there is a noticeable bump in the liner. I can feel an edge. I had thought it was seamless.

    It might be perfectly normal I dont know why I just noticed it could it be a problem? how would I tell if its a problem or the way it should be? Its under a support post on the outside so all I have to go by is the bump under the liner from the rim to the ground.

    help a paranoid pooler out
    25,500K gallons; cartridge; IG; plaster; I'll have to look up the pump size and flow rate

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    Mod Squad Bama Rambler's Avatar
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    Re: should there be a "lump" under liner at the seam

    It's normal. Even if you use wall foam you can still feel the bump a little. What you're feeling is probably a cover used to cover the bolt heads after making the wall connection.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: should there be a "lump" under liner at the seam

    I can feel and see it. its a bump in the liner about as large as say having a pencil behind it all the way down.

    I was assuming it was always there but I am paranoid and notice every little thing I am surprised I had not seen / noticed it before.

    I wonder if there was a plastic cover over it that came loose although with all the water pressure I would assume if it failed it would be total failure
    25,500K gallons; cartridge; IG; plaster; I'll have to look up the pump size and flow rate

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    Re: should there be a "lump" under liner at the seam

    one last mention

    I looked at it more closely and I can feel each bolt down the seam and the what I called "bump" is 1 inch to the right of the bolts so its just the connection as far as I can tell. hopefully this is normal and does not damage the liner.

    unless I hear otherwise im going to stop worrying about it
    25,500K gallons; cartridge; IG; plaster; I'll have to look up the pump size and flow rate

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    Mod Squad Bama Rambler's Avatar
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    Re: should there be a "lump" under liner at the seam

    You're right to stop worrying about it. Ours is the same way. You can feel the bolt heads and the ridge of the seam.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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