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Could someone explain to me how to line up holes in the floor plate and top plate of a finished wall (accessed from the basement and the attic) to run a 2" vent? I am leaning towards running a vent to an existing stack in my attic rather than installing an aav and thinking about how I am going...

How many fixture units can a 2" stack vent serve. I have a 3" stack that serves a full bathroom on one side side of my house, a 1.5 inch stack that serves a kitchen and a 2" stack that serves one toilet and a sink. I am considering connecting my basement bathroom addition to the 2" stack...

Could someone please review the attached sketch of how I would like to plumb my basement bathroom? The only existing lines in the drawing is the 4" building drain that runs from the exterior wall of my home to a tee where a 3" drain runs toward a 3" stack that feeds an upstairs bathroom and a...

Hello, First post here. I am currently finishing my basement and have come to the stage of laying out the bathroom/laundry room. Please see the attached drawing. My home has a lateral sewer that is either a 3" or 4" (not sure, was built in 1953). This lateral tees off to a 3" stack that...