Drainage, Waste & VentQuestion 84 of 360
A circuit vent may serve a battery of not more than how many fixtures?
a.4
b.6
c.10
d.8
Explanation
A circuit vent serves a horizontal branch (battery) of not more than eight fixtures that drain by gravity. Fewer than eight is allowed, but the code cap is eight; a battery larger than eight requires additional relief venting. Four, six, or ten are not the code maximum.
Law Reference: 2022 California Plumbing Code (CPC) §911.0Practice all 360 questions free — no signup required.
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