I have a shower on the first floor and I am going to remodel my laundry room in the basement into a bathroom/laundry room. The shower on the first floor isn't properly vented so I am wondering if I can include it in the basement remodel since I can access it from underneath.
I was wondering if there is a maximum distance from the lip of the floor drain in the shower to the trap wier or another part of the trap?
The lower I can put the trap the better since I plan to run a vent (within the critial distance) as I am showing in the attached drawing. The vent will be tied into the shower drain and both will run along a wall where the drain will drop and meet with the drain for the washing maching. The vent for the washing machine will go up along the wall and both will combine above the shower trap and connect to one of our stacks in the attic.
Is there a maximum length for a 1.5" or 2" vent?
Thanks for the help