Re: Remodeling bathrooms - drain and vent question
Posted by Deb on June 17, 2003 at 22:10:52:
In response to Re: Remodeling bathrooms - drain and vent question
: Hi,
: I'm remodeling 2 bathrooms that are back to back and mirror images of each other. My plan was to use 2" pvc to drain both tubs and both vanities. My question is, is a 2" pipe large enough to drain all 4 fixtures? My other question is, do I need to put an additional vent between the tubs and drain which is about 22" away. (Please see attached diagram)

: Thanks in advance.

: Brian

No, you cannot run it like this. There are several things wrong (UPC Code). You have 2 p-traps on 1 trap arm--can't do that. You may be able to use a double fixture fitting for the tubs and another for the lavs. The 2" pipe is not large enough to wet vent the lavs. Two lavs require a 2" drainage line and you must upsize 1 pipe size, so you would need 3". You may be able to use a double fixture fitting for the tubs and another for the lavs. The vent must be within 42" of the lav's p-trap.
Deb
The Pipewench
Deb
The Pipewench