Bought a house that was built in 1954. It has a large inground pool, about 30-40 years old. Do I have to bond the rebar in the shell, none of which is exposed, or can I just bond the pool pump motor and light? House is located in California. The original pool pipes were copper. The segment between the pool edge and the pump base, about 5 feet, have been replaced from the pool edge to the pump with pvc pipes. The ladder handles will be non-metallic. Thank you.