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Old 05-28-2015, 03:53 PM   #1
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Vertical wet venting?


I'm about to frame/insulate a basement wall, which has a 1 1/2 inch copper drain line nearly flush to the block wall. This drain runs down from the laundry room on the main floor, and is the outflow of the washer standpipe.

A few feet above the basement floor, the copper drain line has a tee, which meets the trap arm of a sink in what once was a bathroom.

I believe this is a vertical wet vent--is that correct?

And if so, the tee should be removed, and nothing in the basement should drain into it?

I don't care really about the basement sink, I just don't want to have to go back and fix the drywall and framing later.

A laundry tub might be nice there one day, but if this really in non-compliant with code, I can deal with it.

Were vertical wet vents allowed back in the day (1951)?
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Old 05-28-2015, 04:13 PM   #2
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No, sounds like some one hacked a laundry room on the first floor illegally. No wet vent between floors. Ps. if your being inspected your drain is undersized for the washer and you should have a vent from the washer out the roof or tied into a vent that go's out the roof.
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Old 05-28-2015, 05:02 PM   #3
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Quote:
Originally Posted by Ghostmaker View Post
No, sounds like some one hacked a laundry room on the first floor illegally. No wet vent between floors. Ps. if your being inspected your drain is undersized for the washer and you should have a vent from the washer out the roof or tied into a vent that go's out the roof.
All the drain lines appear to be original, nothing was added. 1.5 inch copper with cast copper fittings all around, all soldered the same way.

There is a vent in the laundry room to roof.

Either this wet vent was allowed in 1951, or it was never inspected.
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Old 05-28-2015, 05:47 PM   #4
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get us a picture if you can....pittsburgh has always had strict plumbing code for as long as i can remember ..and they enforced it....or fines we handed out big time....even in the 50s & 60s they were tough...
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Old 05-28-2015, 06:07 PM   #5
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Maybe he's in Philadelphia.. They do weird things.
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Old 05-28-2015, 07:20 PM   #6
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Quote:
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Maybe he's in Philadelphia.. They do weird things.
his location says pittsburgh
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