How frequently should the changeover/transfer valve on a two-stage pump be checked?

The changeover/transfer valve on a two-stage pump is critical for ensuring that the pump operates effectively in both modes, allowing for maximum pressure and volume capabilities as needed during firefighting operations. Regular inspections of the changeover/transfer valve help to ensure it is functioning correctly, preventing potential failures during emergencies.

Inspecting this valve weekly strikes the right balance between ensuring reliability and maintaining operational readiness. Weekly checks allow operators to identify any issues, such as leaks, wear, or buildup that could impair the valve's performance, without burdening the maintenance schedule too heavily. This frequency supports the need for consistent functionality while allowing for timely interventions when necessary.

While daily checks are important for other parts of the apparatus, the specific operational needs of a two-stage pump make weekly inspections adequate to catch problems before they affect the pump's performance during critical operations. Monthly and annual inspections would likely not be sufficient to ensure the valve remains in optimal working condition given the high-stress environments in which fire apparatus is used.