Question on 1950's technique


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Old 09-15-16, 03:22 PM
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Question on 1950's technique

Under a bath lav I encountered a 1-1/4 chrome tailpiece extension coming out of a CI hub inside the wall. I can't determine how the tailpiece is attached to the hub. Were these leaded in back in the day? The tailpiece is corroding and may have to be replaced.
 
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Old 09-15-16, 04:06 PM
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Yes they were sometimes soldered. If the hole will be covered by a cabinet when finished I'd suggest open the wall and replace a section of the pipe with PVC using no hub connectors.
 
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Old 09-15-16, 04:18 PM
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It's always best to go into the wall as Ray said.
In order to use the existing arm, you will need about 1-1/2" of good pipe coming out of the tee, this is often doable. Cut the pipe back and see what it looks like.
From your short stub out, you can use a 1-1/4" flexible or hard connector to connect a tubular slip trap.
 
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Old 09-16-16, 06:19 AM
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Thanks. There is a 4" x 4" square hole in the back of the cabinet. The only way into the wall would be cutting a lot more of the cabinet back out. My task on this was merely to clean the clogged trap and waste arm, which I accomplished. I reassembled as it had been, which is by a thread. Currently, it doesn't leak but I told her to be very diligent. I agree cutting the brass tube back to where it is not corroded and a coupling with a Fernco is very desirable vs going into the wall. A general contractor remodeled this bath in 2006 and should have reworked the waste plumbing, but didn't. Maybe this will not leak--it has been this way for 10 yrs.
 
 

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