I have 1 bath in my home on the 2nd story, adding a 2nd bath in my basement.
The toilet on 2nd floor is wet vented to a 4" stack (full vert venting out roof) that drops through the basement. There is a 2" vertical vent that runs alongside the stack for the sink vents. I'm adding a toilet, tub, and sink in the basement. Here is the layout from left to right in the basement floor:
Horizonal 4" sewer line out, 4" vertical stack, then adding toilet, tub, sink, cleanout on end, still 4", all angled down towards sewer. I'm going to vent the sink out to the 2" vent line, but the tub and toilet drains are within 6 ft of the wet vent stack.
Do I need to vent these at all since they're so close to the stack and dropping into a 4" pipe?
The toilet on 2nd floor is wet vented to a 4" stack (full vert venting out roof) that drops through the basement. There is a 2" vertical vent that runs alongside the stack for the sink vents. I'm adding a toilet, tub, and sink in the basement. Here is the layout from left to right in the basement floor:
Horizonal 4" sewer line out, 4" vertical stack, then adding toilet, tub, sink, cleanout on end, still 4", all angled down towards sewer. I'm going to vent the sink out to the 2" vent line, but the tub and toilet drains are within 6 ft of the wet vent stack.
Do I need to vent these at all since they're so close to the stack and dropping into a 4" pipe?
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