Fixtures & Water HeatersQuestion 183 of 360
Where should a water heater pan drain terminate?
a.Into the tank's own T&P line
b.At an approved location where the discharge is readily observed
c.Into a sealed, hidden cavity
d.Back into the cold water supply
Explanation
The pan drain must discharge to an approved point where a leak will be readily seen, alerting the owner to a problem. It cannot combine with the T&P discharge in a way that hides either flow. Visibility is the purpose of both the pan and its drain.
Law Reference: 2022 California Plumbing Code (CPC) §507.5Practice all 360 questions free — no signup required.
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