Fixtures & Water HeatersQuestion 223 of 360
Cross-connection control in a potable water system is intended to:
a.increase water pressure at fixtures
b.prevent nonpotable or contaminated water from entering the potable supply
c.reduce pipe corrosion
d.silence water hammer
Explanation
Cross-connection control uses air gaps and backflow prevention devices to keep contaminated or nonpotable water from flowing back into the drinking water system. Backflow can occur by back-siphonage or back-pressure. Protecting every actual or potential cross-connection is a core plumbing safety requirement.
Law Reference: 2022 California Plumbing Code (CPC) §603.2Practice all 360 questions free — no signup required.
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