Tub drain second floor
We're redoing our bathroom, and all the plumbing work is going to be done by a licensed plumber. I just have a couple questions that I'll ask him as well, but they're on my mind. Can the bathtub drain pipe go down to the basement through one wall and the vent go across the room and out? My reason for asking is to avoid cutting joists to run the drain pipes. If you look at From bathroom remodel you can see what a hack job the prior plumber did. I'd like to avoid drilling most of the joists :)
The bathroom is 7ft wide at most.