mossymeadow
New Member
After finishing our new shower earlier this month, we've been fighting issues with our Moen shower arm leaking behind our wall. Probably should have put the drop ear a little bit further out towards the shower, but it's done now. We're getting grout cracking underneath the shower arm and I don't even want to think about what the wall looks like inside. If you pack toilet paper around the arm it gets soaking wet in under 60 seconds. Hopefully our wall system will help prevent too much mold in the cavity (durarock, redgard, tile).
I've tried putting new tape on and threading it...over and over again. More tape, less tape, etc. Doesn't help
After reading different threads on here, I took a look at the threads on the shower arm. They are more square, rather than having sharp Vs like the dog ear elbow does.

I suspect this is the cause of the constant leaking, but I am not sure of the solution.
Options:
a) get a new shower arm that has better threads. If this would help, what brands should I look for?
b) use more teflon tape
c) clean out the inside of the dog ear elbow to make sure there's no junk or corrosion in there (WD-40 and a toothbrush? Steel wool?)
I'm so frustrated with this Moen shower valve and associated parts! The illustrations for installing the valve were wrong so now our shower handle sticks out an extra 1 1/4 inch, and now this . . .
I've tried putting new tape on and threading it...over and over again. More tape, less tape, etc. Doesn't help
After reading different threads on here, I took a look at the threads on the shower arm. They are more square, rather than having sharp Vs like the dog ear elbow does.


I suspect this is the cause of the constant leaking, but I am not sure of the solution.
Options:
a) get a new shower arm that has better threads. If this would help, what brands should I look for?
b) use more teflon tape
c) clean out the inside of the dog ear elbow to make sure there's no junk or corrosion in there (WD-40 and a toothbrush? Steel wool?)
I'm so frustrated with this Moen shower valve and associated parts! The illustrations for installing the valve were wrong so now our shower handle sticks out an extra 1 1/4 inch, and now this . . .
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