Posted by Timothy Masters on May 28, 2003 at 18:04:02:
I live in a 5 story condo and I am remodeling my kitchen. As I opened up the wall near the sink, I found that the drain pipe and vent to the roof were not connected, the clamps had let go years ago. I live on the top floor so the drain is a common drain.

My question is, does the vent need to go to the roof? How high above the sink does the vent need to be? Other than drain noise, will there be other problems if the connection to the roof is left open? Can I change the diameter of the vent pipe in order to re-route the vent?

Thank you

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