Drainage, Waste & VentQuestion 20 of 120
A kitchen sink is located in an island counter where no wall is available for a conventional vent. Which venting method is designed for this condition?
a.Circuit vent
b.Yoke vent
c.Vent stack
d.Island or loop vent
Explanation
An island or loop vent rises as high as possible under the counter, returns downward, and then connects to a vent line, which is the method developed for fixtures with no adjacent wall. A circuit vent serves a battery of floor-set fixtures, a yoke vent relieves pressure between a drainage stack and its vent stack, and a vent stack is the vertical vent serving a whole drainage stack rather than a single island fixture.
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