How long should pumps be activated and run each week according to manufacturer's specifications?

The correct choice highlights that pumps should typically be activated and run for a duration of 10 minutes each week, as specified by manufacturers. This practice is essential for several reasons. Running the pumps for at least 10 minutes allows sufficient time for them to reach their operational temperature and pressure, ensuring that all components, including seals and impellers, are properly lubricated and functioning. This regular operation can also help identify any potential maintenance issues before they become significant problems.

Additionally, it aids in clearing any debris or stagnation within the system, ensuring that the components are clean and ready for operation when needed. Such a regimen is a common guideline, as it strikes a balance between operational readiness and maintenance without creating excessive wear on the system. While other durations are certainly presented, they may not align with the recommended practices that promote longevity and reliability in fire protection systems.