According to California regulations, what type of backflow prevention device is required for residential irrigation systems connected to potable water supplies?
Correct Answer
D) Pressure vacuum breaker assembly (PVBA)
California Plumbing Code Section 603.3.5 requires pressure vacuum breaker assemblies for residential irrigation systems. PVBAs provide adequate protection against backsiphonage for irrigation systems while being cost-effective for residential applications, though they must be installed at least 12 inches above downstream piping.
Why This Is the Correct Answer
California Plumbing Code Section 603.3.5 requires pressure vacuum breaker assemblies for residential irrigation systems. PVBAs provide adequate protection against backsiphonage for irrigation systems while being cost-effective for residential applications, though they must be installed at least 12 inches above downstream piping.
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