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Thread: Length of Pipe for Tub Spout?

  1. #1

    Default Length of Pipe for Tub Spout?

    I am replacing a 3 valve divertor in my tub/shower and my tub spout has an internal threaded connection to the pipe coming out of the wall. This pipe coming out of the wall needs to be replaced since the tub spout is a different length.

    My question is this...How do I get the threaded pipe to the right length so that when I go and tighten the tub spout it points downward and is flush/tight to the wall?

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    New England


    The nipples come premade in various lengths. Worse comes to worse, you might get one made, but it needs a special machine, not the standard pipe threading one. You will have a little leaway by using more or less wraps of teflon tape at both the in-wall elbow and at the spout. Unless this is a divertor tub spout, there isn't much pressure, so it doesn't take much to keep it from leaking. If it has a divertor on it, that is not as true. Some of the fittings in those things are plastic, if yours is, don't overtighten it or you could split it. The better ones are metal, but even then it can be split from over tightening.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    Plumber Cass's Avatar
    Join Date
    Nov 2005


    use a 1/2 copper male adaptor and sweat 1/2 copper pipe on then you can cut it to the length necessary.


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