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Thread: Installing Kohler Shower Drain Gasket

  1. #1
    DIY Junior Member sproksch's Avatar
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    Question Installing Kohler Shower Drain Gasket

    Hello,

    I have a Kohler K-9132 shower drain I'm trying to install. The last step is to install the big gasket that makes the seal between the drain housing and drain pipe. I got this gasket about 3/4 of the way inserted, still have about a half an inch to go and it will not move anymore. The whole "soapy water lubricant" thing in the instructions didn't seem to help much. I've tried working it with a wood shim, but I've gotten as far as she'll go it seems.

    Any advice? Is there enough in there for a good seal and I can just trim off the last half inch?

    Thanks much!
    Steve

  2. #2
    Moderator & Master Plumber hj's Avatar
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    I use my hammer and lead calking irons to drive it down. A very blunt screwdriver or piece of narrow flat metal may also work.

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    DIY Junior Member sproksch's Avatar
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    Thanks - I'll give that a try!

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    DIY Junior Member sproksch's Avatar
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    Well, still no-go. The blunt screwdriver would penetrate the gasket; tried a square nail, but the gasket would just absorb the hammer blows and bounce back. Pushing on it just compresses the top of the gasket, making it thicker and even more impossible to push in.

    Oh well, I guess I'll just have to take my chances and if it leaks, then I'll by a drain that has some kind of a threaded retainer that pushes the gasket in. Didn't think I'd have to worry about this sort of thing buying a Kohler drain. Customer service there didn't have any ideas other than what was in the instructions.

    thanks anyway!
    Steve

  5. #5
    Moderator & Master Plumber hj's Avatar
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    You may have a gasket for SV cast iron pipe, rather than plastic. You also might just need a bigger hammer.

  6. #6
    DIY Junior Member sproksch's Avatar
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    Cool thanks, I'll check that out! Didn't know there could be different types of gaskets...

  7. #7
    Moderator & Master Plumber hj's Avatar
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    When the o.d. is larger, the gasket has to be thinner, and vice versa. A copper pipe gasket would be a lot thicker than one for galvanized or cast iron.

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