dwv size
Posted by rob hackman on February 04, 2003 at 19:54:28:
I'm installing a new dwv system in my cabin most of the piping will have to be a horizontal runs with the exception of the the vents. The bathroom and kitchen sinks will be the only drains going into the stack vent.I'll be using 3 inch pvc for the main drain lines and reventing all fixtures to main stack in attic. My question is does the main stack vent have to be a 3 inch or can I reduce the main vent to 2inch.

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