Section
Backflow Prevention and Cross-Connections
51.01 Cross-connection defined
51.02 Cross-connection prohibited
51.03 Inspections
51.04 Right of entry
51.05 Discontinuance of service
51.06 Immediate action
51.07 Toxic and hazardous liquids
51.08 Backflow preventers below ground
51.09 Plumbing Code
51.10 List of backflow prevention facilities
51.11 Necessary backflow systems