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When installing water supply piping in California seismic zones, which of the following is required by the California Residential Code for earthquake safety?

Correct Answer

C) Flexible connectors at the water heater and shut-off valve locations

CRC Section 2904.6.1 requires flexible connectors at water heaters and other appliances in seismic zones to prevent rupture during earthquakes. These flexible gas and water connectors allow movement without breaking, reducing fire and flood risks. California's seismic requirements are more stringent than standard IRC provisions.

Answer Options
A
Steel pipe with threaded connections at all joints
B
Rigid copper connections only throughout the system
C
Flexible connectors at the water heater and shut-off valve locations
D
PVC piping with solvent welded joints exclusively

Why This Is the Correct Answer

CRC Section 2904.6.1 requires flexible connectors at water heaters and other appliances in seismic zones to prevent rupture during earthquakes. These flexible gas and water connectors allow movement without breaking, reducing fire and flood risks. California's seismic requirements are more stringent than standard IRC provisions.

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