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Discussion Starter · #1 ·
Once again i apologize for longwinded post in wrong forum, i simplified it and made new drawing, can someone help me to delete original post

have questions on bathroom venting, i made a diagram as best i could

-the black lines (abs pipes) are how it is currently
-the red dotted lines are how i think it might need to be in order to vent it
-2' vertical main vent stack runs from basement 3' drain -right up through the 2nd story and out to roof
-wasn't sure if 1 1/2 branch vent line that runs horizontal should have been 2" because of distance away from the 2" vertical vent pipe
-not sure if vanity can drain/vent the way it is, or should i do it like diagram (red dotted line)


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