Annual backflow prevention inspection completed at multiple commercial sites in Wake Forest. Tested 12 different assemblies including reduced pressure zone devices and double check valve assemblies. Each backflow prevention inspection included differential pressure testing, relief valve operation checks, and documentation for state compliance. Found three units requiring minor repairs - scheduled follow-up service calls. The backflow prevention inspection program ensures these protective devices function properly year-round. All sites now have current certification to maintain their water service connections without interruption.