SC Plumber Contractor Practice Questions - South Carolina Plumber Contractor Examination Exam

A common vent may serve two traps or trapped fixtures only when which condition is met?

The fixtures are on different floor levels and the upper fixture is a water closet. The fixtures are located on the same floor level. The combined load exceeds 12 DFU. The vent is smaller than one-half the drain size.

Correct Answer:

The fixtures are located on the same floor level.

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