NM Plumbing Inspector Practice Questions - New Mexico CID Plumbing Inspector Examination Exam

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A pressure vacuum breaker is installed 8 inches above the highest downstream outlet of a lawn-sprinkler system with no pumps or chemical injection. Per UPC 2021 Table 603.2, what is the inspector’s call?

Accept it; 6 inches is enough for a PVB Reject it; a PVB shall be at least 12 inches above all downstream piping and the flood-level rim Reject it because a PVB can never serve irrigation Accept it only if a valve is installed immediately downstream

Correct Answer:

Reject it; a PVB shall be at least 12 inches above all downstream piping and the flood-level rim

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