Take the 2-minute tour ×  I am remodeling the master bath and I
need to relocate the bath tub. I will be extending the trap
about 3-4' from where it is now. I'm wondering if I need to
relocate the vent pipe as well. How far can it be from the vent?
share|improve this question add comment  1 Answer  up vote 4
down vote accepted  It depends on the diameter of the trap.
Under International Building Code use table 906.1.  A 1.5" trap
can be 6 feet from the vent (if your trap is only 1.25" the
maximum distance is 5 feet).  It looks like you should be fine
in your situation.  share|improve this answer Thanks! That is
what I was looking for, it written in code! –  SteveR Feb 11 '12
at 14:06 add comment  Your Answer