Urinal

1
Branch Vent
Individual Vent
Dual Vent
Circuit Vent
Water closet
Water closet
Water closet
Floor drain
Relief Vent
Water closet
Urinal
2
Branch Vent
Individual Vent
Circuit vent
Dual Vent
2.5.3.1(1) A branch serving fixtures within a
single storey may be circuit vented provided
there is no stack connected upstream of the
circuit vented fixture
Relief Vent
Water closet
Water closet
Water closet
Floor drain
Water closet
Soil or waste stack with more than 6 fixture units
Urinal
Circuit venting of this group is required because
the branch is serving more than 2 water closets
and they are not connected downstream of the
other fixtures
Stack is downstream of the circuit vented branch
3
Relief Vent
2.5.3.1(3) A relief vent is required with every
branch that is circuit vented downstream of the
most downstream circuit vented trap arm connection
Water closet
Water closet
Water closet
Floor drain
Water closet
Soil or waste stack with more than 6 fixture units
Urinal
2.5.3.1(4) A soil or waste pipe with a load of 6
fixture units or less may act as a relief vent
4
Branch Vent
Individual Vent
Dual Vent
Circuit Vent
Water closet
Water closet
Water closet
Floor drain
Soil or waste stack with 6 fixture units or less
Water closet
Urinal
A fixture drain, branch, or stack, with 6 fixture
units or less, may act as the Relief Vent
5
Branch Vent
Individual Vent
Separately vented 11/2 or 11/4 traps
Dual Vent
Circuit vent
2.5.3.1(2) Fixtures with trap arms less than two
inch must be separately vented or separately
circuit vented
3 inch Water closet trap arm/ fixture drain
3 inch Water closet
3 inch Water closet
3 inch Floor drain
Relief Vent
3 inch Water closet
2 inch Urinal
2.5.3.1(9) A circuit vented branch must be at
least 2 inch serving 11/2 or 11/4 traps and must
be at least 3 inch for traps 2 inch or larger
Branch must be 4 inch downstream of the third
water closet
6
Branch Vent
Individual Vent
Dual Vent
Circuit Vent
Water closet
Water closet
Water closet
Floor drain
Relief Vent
Water closet
Urinal
7
Branch Vent
Individual Vent
Dual Vent
Circuit Vent
Water closet
Water closet
Water closet
Floor drain
Relief Vent
Water closet
Urinal
8
Branch Vent
Individual Vent
Dual Vent
Circuit Vent
Water closet
Water closet
Water closet
Floor drain
Relief Vent
Water closet
Urinal