If the remote pressure gauge reading does not match the regulator gauge reading, what should be assumed?

In situations where the remote pressure gauge reading does not align with the regulator gauge reading, assuming that the lowest reading is correct is a prudent approach. This is based on the understanding that if there is a discrepancy in the readings, one of the gauges may be faulty or malfunctioning.

Pressure gauges are designed to indicate the pressure within the system accurately, but various factors, including wear, damage, or incorrect calibration, can lead to inaccurate readings. When faced with two different readings, the lowest one is usually safer to consider as the accurate pressure in the system. This is particularly important in firefighting, where knowledge of the pressure levels can affect operational safety and decision-making. Using the lower reading helps to ensure that the firefighters do not inadvertently operate under a false sense of security regarding the available pressure, which could lead to inadequate water supply during critical situations.

This context emphasizes the importance of cautious and informed decision-making in emergency situations, where equipment reliability is crucial.