View Full Version : Water closet connection to sanitary lines
aghmaintenance1
Oct 29, 2009, 09:05 AM
What is the maximum number of water closets that can be connected to a 3" sanitary line
massplumber2008
Oct 29, 2009, 02:55 PM
Hi Agh...
In my area you cannot connect more than 3 toilets or 3 bathroom groups on a 3" building drain.
Need any more... let me know.
MARK
.
speedball1
Oct 29, 2009, 04:56 PM
An d in my area( Standard Plumbing Code) while you can connect 20 fixture units in a 3" branchhowever, it restricts you to two water closets. Regards, tom
Milo Dolezal
Oct 29, 2009, 09:52 PM
In my area, it is similar what Tom posted: We can connect 2 toilets to 3" line, max. . If you are connecting 3rd toilet, you have to upgrade to 4".