SafetyQuestion 342 of 360
After installing a reduced-pressure backflow assembly on a commercial water service, what ongoing requirement protects the public water supply?
a.It must be tested at least annually by a certified backflow tester
b.It never needs testing once installed
c.It only needs testing if the building changes owners
d.It should be removed after one year
Explanation
Testable backflow prevention assemblies such as RP and double-check assemblies must be tested upon installation and at least annually by a certified backflow prevention assembly tester, because internal check valves and relief valves wear and can fail silently. Annual testing verifies the assembly still protects the potable supply. Local water agencies enforce and track these tests.
Law Reference: California Plumbing Code §603Practice all 360 questions free — no signup required.
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