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Old 02-01-2016, 06:27 PM   #1
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Dual vent stack?

Doing a renovation to my side porch and I noticed this additional pipe off my main vent (bottom right).

I believe at some point the previous owner had their washer and dryer up here; you can see the vent hole for the dryer in the lower center of the image.

Is this tapped off pipe a vent or a drain?

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Old 02-01-2016, 07:00 PM   #2
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From right to left (hard to see because you took the picture to far to the left) looks like a vent with a clean out and an old drain for the washer (that's to low).
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Old 02-01-2016, 07:04 PM   #3
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its called a stand pipe( drain) for the washing machine, you can just cap it off or cut it back to the stack and cap..
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