Davey Smith
New Member
Bought an old house with one bathroom on the first floor. There is a large closet on the second floor that is directly above the first floor bathroom. There is a 3 inch cast iron vent pipe (that goes through the roof) that is tied into the kitchen sink and the existing first floor bathroom and it is connected to the 4 inch drain pipe in the basement.
I want to add a new bathroom in that second floor closet that is above the first floor bathroom. The 3 inch vent pipe is located in a "chase" that rises up through the second floor closet (future bathroom).
Is it possible to use that existing 3 inch vent pipe also as a drain pipe for the new fixtures that will be installed in the new second floor bathroom? It would also continue to function as the household vent pipe as well.
My builder says it is possible. He is a top-notch home builder and remodeler.
Any thoughts on using the 3 inch vent pipe as a drain pipe (as well as a vent pipe)?
Thanks
I want to add a new bathroom in that second floor closet that is above the first floor bathroom. The 3 inch vent pipe is located in a "chase" that rises up through the second floor closet (future bathroom).
Is it possible to use that existing 3 inch vent pipe also as a drain pipe for the new fixtures that will be installed in the new second floor bathroom? It would also continue to function as the household vent pipe as well.
My builder says it is possible. He is a top-notch home builder and remodeler.
Any thoughts on using the 3 inch vent pipe as a drain pipe (as well as a vent pipe)?
Thanks