Do the galley and LAV have a shut off valve?

The galley and the LAV (lavatory) both have water shut-off valves, which is essential for managing water supply and maintenance. The presence of shut-off valves allows for quick isolation of water flow to these areas in case of maintenance requirements, leaks, or other issues without affecting the entire system. This feature enhances safety and efficiency in operations.

In contrast, the other options imply a limitation or absence of shut-off valves for either the galley, the LAV, or both, which would not meet the operational standards typically set for aircraft systems. Having functional shut-off valves in both locations ensures that if there is a need for repairs or if an emergency arises, the water can be turned off quickly, minimizing potential damage and enhancing safety protocols.