donohoo33
New Member
We are doing a bathroom remodel and are removing an existing wall-mount toilet and replacing with a standard floor-mount toilet. Unfortunately, this creates a potential problem with the drain, since its now running in a different floor joist bay. There is a small stub wall next to the toilet separating it from an adjacent tub/shower. The tub/shower drain vent is located in this wall between the tub/toilet. The main drain line is on the other side of the tub:
Toilet, wall with 2" vent, tub/shower, then main 3" drain line.
The prior wall-mount toilet used to have it's own dedicated vent and connected separately downstream to the 3" drain.
My question: Can I run the new 3" ABS drain towards the drain, pick up the 2" vent in the stub wall, then use this as a wet vent to pick up the tub/shower drain before draining into the main 3" drain? Based on the code I have read, it looks like you are allowed to use a wet vent for single bathroom groups, but the toilet is supposed to be downstream of any other fixtures, whereas in my case it would be upstream. Is this really a problem?
Thanks
Toilet, wall with 2" vent, tub/shower, then main 3" drain line.
The prior wall-mount toilet used to have it's own dedicated vent and connected separately downstream to the 3" drain.
My question: Can I run the new 3" ABS drain towards the drain, pick up the 2" vent in the stub wall, then use this as a wet vent to pick up the tub/shower drain before draining into the main 3" drain? Based on the code I have read, it looks like you are allowed to use a wet vent for single bathroom groups, but the toilet is supposed to be downstream of any other fixtures, whereas in my case it would be upstream. Is this really a problem?
Thanks