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Old 03-28-2013, 01:15 PM   #1
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Connecting Sink Drain Pipe to wall

I am working out the details on how to connect my new drain+p trap assembly to the (waste? drain?) pipe in the wall. The new stuff I have is 1 1/4" diameter PVC, and I have an 1/8" turn on the wall pipe (See pic).

Connecting Sink Drain Pipe to wall-image-3881109960.jpg

From what I've read so far, I need a Fernco fitting to connect these two. The only problem I'm having now is figuring out the diameter of the wall pipe and determining if there is a fernco fitting that will work for me. I measured the outside circumference of the pipe at 5 3/4", which (using math) should come out to be a 1.91" diameter. So.. that's not super helpful. Would this be 2" and my math is failing me? Or is it metric (doubtful, house from the 60s).

Any thoughts on this? Or do I have to take off the current P trap (soldered on) and measure the pipe?


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Old 03-28-2013, 01:32 PM   #2
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1.900" is the outside diameter of 1" schedule pipe.


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Old 03-28-2013, 01:54 PM   #3
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Looks like a soldered fitting. Unsolder it and install this.
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