Mikeygstl
New Member
I am finishing off our basement laundry, and currently there is a 3" stack coming up out of the floor. The trap is under the concrete. Is it acceptable to reduce the pipe size to 2" in order to hook up to a washing machine outlet box, or is there a outlet box with a 3" spigot or hub connection? I fall under IRC here - they still go by the 2006 edition.