justincan
New Member
I'm adding a 1/2 bath but struggling with the plumbing layout.
The wall where the toilet and sink are located is an exterior wall and the concrete foundation is higher than the subfloor, so I am unable to run the drain down through the exterior wall (noted with the red line in the image).
The toilet is planned to be on the left side with a sink on the right. Plumbing for the toilet should be rather straight forward where the vent stack is running up through the left hand wall and out the roof.
My dilemma is when it comes to the drain and vent for the sink. These are the options I can think of:
1. Drain through the floor with an AAV.
2. Drain through back wall and then around the right corner down through the floor. Vent runs straight up the back wall and meets toilet stack in ceiling
3. Drain through the right wall, vent goes up and drain goes down. (would probably be slightly harder to install the vanity needing to cut a hole in the side rather than back)
Are there any other options? What do you think is the best & correct way to do this?
The wall where the toilet and sink are located is an exterior wall and the concrete foundation is higher than the subfloor, so I am unable to run the drain down through the exterior wall (noted with the red line in the image).
The toilet is planned to be on the left side with a sink on the right. Plumbing for the toilet should be rather straight forward where the vent stack is running up through the left hand wall and out the roof.
My dilemma is when it comes to the drain and vent for the sink. These are the options I can think of:
1. Drain through the floor with an AAV.
2. Drain through back wall and then around the right corner down through the floor. Vent runs straight up the back wall and meets toilet stack in ceiling
3. Drain through the right wall, vent goes up and drain goes down. (would probably be slightly harder to install the vanity needing to cut a hole in the side rather than back)
Are there any other options? What do you think is the best & correct way to do this?