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Old 05-25-2012, 10:58 AM   #1
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Broken Waste Line Thread


I am in an old building replacing the trap in the bathroom vanity. My issue is the waste line coming out from the wall. When I removed the pipe attached it crubled and left the threads a bit broken up. Now when I try to attack the new fixture it wont catch. Replacing the pipe in the wall would be a major project that I am hoping to avoid. Is there something I can do to resolve this, put in a smaller fitting and something like prodope? Since its a waste line should that make it somewhat of an easier fix?

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Old 05-25-2012, 12:48 PM   #2
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You really need to post a picture. It's hard to advise when we don't know what is looks like.

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Old 05-25-2012, 12:50 PM   #3
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Ideally you would remove the trap arm from the tee in the wall and convert it to plastic by using a MIP x plastic adapter.
If that's not possible, cut the bad threads off and use a fernco to attach new pipe and trap.
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Old 05-31-2012, 07:07 AM   #4
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For some reason every time I try to upload pics the dialog box comes up and times out after upload. I can email them if necessary. Basically the female pipe I am trying to access is about an inch in from the tile on the wall. When trying to attach a male 1.5 inch it doesn't catch because the threads are broken. What can I do to attach a trap to this pipe without replacing the whole thing. If possible send a link to the product or technique you think would work, as I'm not overly familiar with some of the products that have been mentioned already. Thanks.
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Old 05-31-2012, 08:27 AM   #5
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Are you sure all of the old nipple has been removed? If it's just some rust a Demel tool with a wire brush wheel may clean it out.
If I can see where a thread got messed up I've used a Dremel cut off wheel to carefully clean them up.
A curved dental pick can be used to help clean up any low spots.
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Old 05-31-2012, 10:29 AM   #6
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I went at it the other day by hand with a small wire brush. Can I buy a wire brush bit that will attach to my screwgun? If this doesnt work what is my work around?

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