Galvanized Pipe Threads Ae Now Smooth In One Spot - Plumbing - DIY Home Improvement | DIYChatroom

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Old 01-20-2010, 10:48 PM   #1
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Galvanized pipe threads ae now smooth in one spot

I am replacing a galvanized pipe which has rusted out badly. This pipe connects to another galvanized pipe in the wall which seems to be a vent pipe as well. Where the rusted pipe sat has destroyed the threads in a 3/4" spot, thus causing my new PVC fitting to leak as well. I used plumber's tape to get a good seal but apparently it didn't do the job. What else can I do short of removing a good chunk of my kitchen cabinets and wall the replace this T fitting in the wall?

Cause of the problem.

The problem.


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Old 01-21-2010, 05:58 AM   #2
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It is pretty common for the nipple threads to rust off, but usually the wall elbow is OK. Try multiple wraps of teflon tape and pipe dope, that may work. But I suspect you will need to replace the elbow. And no, it is not a simple job.


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