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  1. #1
    Join Date
    Sep 2012
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    4

    Thumbs down Leaking Shower Arm behind Wall

    We just put in a 6' molded shower stall, with American Standard fixtures. My husband left the end wall open until we had taken several showers to see if there were any leaks.

    Sure enough, a leak at the threads behind the wall. He couldn't get it to stop. He called AS and they sent a new arm.

    Would you believe we still have the same problem?? Although he has installed fixtures before he has decided it must be something he is doing or not doing.

    I'm attaching a pic pointing out where the leak is/was in both and how much of the arm is behind the wall (you can see the marks on the arm where he had to put vise grips on it. It stops at 9 o'clock by hand. Which means it's pointed up.

    It's not a big leak, just drops. Using hot or cold or warm water.

    Would someone be so kind as to look at this pic and throw some advice/ideas/suggestions his way. He is ready to pull what hair he has left, out.

    My thanks.......j
    Hmmm....it seems as a newcomer, I'm not allowed to post images. I hope I explained the problem well enough.

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
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    5,438

    Default Re: Leaking Shower Arm behind Wall

    It's impossible to imagine where the leak is coming from, so try to load a photo via photobucket dot com, or something like this.

    I could guess that something is misthreaded or missing plumber's dope. That would cause a tiny drip.

    Don't run the shower and don't let a drip behind the wall become a monster mildew problem.

  3. #3
    Join Date
    Sep 2012
    Posts
    4

    Question Re: Leaking Shower Arm behind Wall

    I'm sorry I realize now most of my explanation is in the picture.
    We left the wall open (at the business end of the shower) until this is fixed.

    It is around the threads where it is leaking. He has tried umpteen different methods. Wrap teflon tape 3 times, wrap tape 6 times, tape and pipe joint compound, wire brush. He took the first one totally out and started over from clean and scratch and still has the same problem. And the two(same style & co)different shower arms.

    I'm afraid this is the message I get from this forum even using Photobucket.

    "The following errors occurred with your submission:
    To be able to post links or images your post count must be 10 or greater. You currently have 1 posts.

    Please remove links from your message, then you will be able to submit your post."

    Soooo I went and put it on a webpage. I'll understand if you don't want to go to the trouble to copy and paste the address.

    I went on and put the original size, labeled image since I had to go to all that trouble anyway. I thought might as well be able to see it good.

    plumbingtrouble.blogspot.com/

    Thanks, j

    This is ridiculous. It wouldn't even let me type the http with no active html link.

  4. #4
    Join Date
    Feb 2010
    Location
    South*East
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    1,183

    Default Re: Leaking Shower Arm behind Wall

    I don't see any t-tape or pipe dope on the shower arm. There is also the chance that the female ell is bad. To test this put a nipple and cap in it . If it leaks with the nipple and cap the fitting is bad. It's very strange that you have a leak there as there is very little pressure on that joint.


    John

  5. #5
    Join Date
    Jul 2010
    Location
    SoCal
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    5,438

    Default Re: Leaking Shower Arm behind Wall

    I finally saw the photo.
    If the wall is open, I'd replace the female adaptor.
    BTW, I also don't see any teflon tape, but I do see a lot of wrench marks on the brass nipple. Talking about teflon tape: I do 8 wraps around, and I get no leaks.

  6. #6
    Join Date
    Dec 2007
    Location
    Tennessee
    Posts
    1,419

    Default Re: Leaking Shower Arm behind Wall

    The photo is just a mock up of the actual fitting. Is the actual ell PVC? Around here, you cannot have a metal male thread screw into a PVC female thread. You can have male PVC thread into metal female thread, PVC to PVC and metal to metal, but not what you have mocked up. It is very easy to crack the female PVC threaded part. But they make them and sell them so maybe they are legal somewhere or maybe its just a local thing here that bans them.

    Anyway, I would suggest that you start with a brass ell with female threads on both fittings, the glue a male PVC bushing onto the pipe and screw the ell onto it. Then screw the shower arm into the new ell, with or without an intermediate bushing as needed.

  7. #7
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    5,438

    Default Re: Leaking Shower Arm behind Wall

    I find it a bit strange that AS arms leak and other arms don't. By now your 90 elbow is pretty worn out (judging by the amount of power you exerted on the arm in the photo) - replace the 90 elbow, like I suggested before, and use a standard arm with the same finish as AS - and start enjoying your showers!

    If you want to call AS, they'll charge you s&h larger than buying a standard arm.

  8. #8
    Join Date
    Dec 2007
    Location
    Tennessee
    Posts
    1,419

    Default Re: Leaking Shower Arm behind Wall

    Quote Originally Posted by dj1 View Post
    If you want to call AS, they'll charge you s&h larger than buying a standard arm.
    I contacted American Standard through the e-mail at their web site about a leaking flush valve Champion 3 toilet. They sent me an upgrade to a Champion 4 free, twice. The first one they sent was for a one piece toilet but mine is a two piece. They did not charge me shipping and handling for either one.
    Last edited by keith3267; 09-17-2012 at 11:16 AM.

  9. #9
    Join Date
    Sep 2012
    Posts
    4

    Default Re: Leaking Shower Arm behind Wall

    I guess we will just try another 'style'? arm from AS and then switch brands if that doesn't work.
    AS did send us the replacement arm free of charge and shipping.
    I'm just interested in color and shape, not brand.
    And Hub, being an annoyingly meticulous personality, did put on all new everything each time So nothing is worn out.
    And yes, we too, in our world, have run into more than one part in a row that is defective. Just not in the shower arm category, until now.
    I thank you for your time and advice.
    jennifer

  10. #10
    Join Date
    Apr 2014
    Posts
    1

    Default Re: Leaking Shower Arm behind Wall

    Old thread but felt I had to contribute.

    I've soldered joints for years, getting pretty good at it. But I just installed a new shower valve and shower arm, with 5 threaded fittings. They pretty all much leaked a bit and I couldn't figure it out, changed the shower arm and female L amd it still leaked.

    After reading the advice about the 8 rounds of teflon tape I realized I don't use enough teflon. Redid the threaded joints with 8-10 wraps of teflon and perfect.

    DP

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