Non-Testable Dual Check Valve on

single family resident (with NO harbor channel

access.)

RP meter protection “as close as

practical to the meter.”

RP Meter Protection out of utility

easement, with security enclosure

DCDA Fire Service Meter Protection

RP Meter Protection out of utility

easement, with security device

Older model PVB backflow device

isolating landscape sprinklers, to be

changed out for an RP

Other more current model PVB backflow

device

RP backflow device