snoqdan
New Member
Can I vent a 2-inch shower drain with 1 1/2 inch vent pipe that meets up with another 1 1/2 inch bathroom sink vent pipe to a 2-inch vent pipe?
Shower Vent Stack Question
- Thread starter snoqdan
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lma1
Member
In general, it depends on the layout, your (Code) definition of a BG (bathroom group), and the kind of vent after combining. A 2 BrV (branch vent) can take a total of 8 DFU (Drain Fixture Units) with a VL (vent length) =< 200 or 20 DFU with a VL =< 150. A 2 StV (stack vent) can take a total of 12 DFU with a VL =< 200 or 20 DFU with a VL =< 150. BG, BrV, StV and VL are plumbing terms defined under our BCPC (BC Plumbing Code).
Your total FU is estimated at according to our Code (1.5 (SH) + (6 for BG w/ F-T WC or 8 for BG w/ F-V WC) = (7.5 ~ 9.5) FU.
In most cases and according to most codes, yes.
lma1
Member
I would agree with Plumb-Crazy that the proposed 2” vent will probably satisfy our Code and most codes.
