Roof vent pipes - tied together?
Posted by Mike V. on May 06, 2004 at 04:07:49:
I'm re-roofing my 2 story house. I have a vent pipe thru both the front and back of my house - one for each system. Question: can I tee both pipes together so that I have only one pipe thru the roof on the back of my house. (This is purely for curb appeal)

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