What is emphasized about valve operation in hydrant and standpipe systems per NFPA 13E?

• A. Valves should be left in the open position at all times.
• B. Valves must be painted silver.
• C. Valves must be operable, accessible, and clearly labeled to control water supply during operations.
• D. Valves are optional in hydrant systems.

Answer: (C)

Controlling water supply during firefighting hinges on having valves that are operable, accessible, and clearly labeled. If a valve is hard to move, blocked, or not identified, responders can waste crucial time trying to locate or operate the correct valve, which can delay water flow to the needed section of the system. Ensuring operability means the valve mechanism functions properly when turned, often requiring regular maintenance, testing, and lubrication. Accessibility means the valve can be reached quickly without moving obstacles or entering restricted areas. Clear labeling tells exactly what portion of the system the valve controls, preventing confusion under stress and helping to isolate or open the correct segment to manage pressure and water supply.

Other options don’t fit because leaving valves open all the time removes control during an incident, painting them a specific color is not a safety requirement, and claiming valves are optional contradicts the need for reliable, controlled water supply during operations.