The Ontario Building Code | Venting for Traps
184.108.40.206. venting ="http://thehandyforce.com/interior/bathroom-renovations/" title ="Toronto Bathroom renovation inspiration">venting for Traps
(a) additional circuit vents,
(b) branch vents,
(c) circuit vents,
(d) continuous vents,
(e) dual vents,
(f) fresh air inlets,
(h) individual vents,
(i) offset relief vents,
(j) relief vents,
(k) stack vents,
(l) vent stacks,
(m) wet vents, or
(n) yoke vents.
(a) the sizeof the trap is not less than 3 in.,
(b) the length of the fixture drain is not less than 450 mm,
(c) the fall on the fixture drain does not exceed its size, and
(d) the trapis connected to a horizontal drainage pipe that terminates at its upstream end in a 3 in. stack.
(a) where it serves,
(ii) a storm drainage system, or
(b) where it forms part of an indirectdrainage system.
7.5.2. Wet venting ="http://thehandyforce.com/interior/bathroom-renovations/" title ="Toronto Bathroom renovation inspiration">venting