Fixtures & Water HeatersQuestion 169 of 360
A T&P relief valve discharge pipe terminating outside the building must end how far above the ground or receptor?
a.between 24 and 48 inches
b.flush with the ground
c.at least 36 inches above grade
d.not less than 6 inches and not more than 24 inches
Explanation
The end of the discharge pipe must terminate not less than 6 inches and not more than 24 inches above its point of discharge, such as grade or a receptor. This keeps hot water from spraying an occupant while keeping the outlet visible and above flooding. The end must remain unthreaded and point downward.
Law Reference: 2022 California Plumbing Code (CPC) §608.5Practice all 360 questions free — no signup required.
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