What does a positive pressure indicated by the master gauge signify?

A positive pressure indicated by the master gauge signifies that the pump is in gear. This means that the pump is actively pressurizing the water system, which is essential for ensuring water is delivered to the intended locations, such as fire hoses or sprinkler systems. The presence of pressure indicates that the pump is functioning correctly and that water is being moved through the system, ready for use.

While other indicators might suggest different conditions, such as whether the pump is off or if servicing is required, a positive pressure gauge specifically reflects that the pump is engaged in the process of moving water through the system. Therefore, a positive reading is a clear and important signal of operational readiness in the context of pump operation.