How is the flow of water in a sprinkler system typically shut down?

• A. Closing valves.
• B. Removing the sprinkler heads.
• C. Turning off the pump at the source.
• D. Disconnecting the water supply.

Answer: (A)

Shutting down water flow in a sprinkler system is done by closing the valve that controls water entering the system. This control valve is designed to isolate the system quickly and safely, stopping pressure and preventing any further water from filling the lines. It’s the quickest, most reliable way to halt flow without leaving leaks or pressurized water in other parts of the system.

Other methods aren’t used as the standard shutdown: removing sprinkler heads wouldn’t stop flow in the rest of the piping and could cause leaks; turning off the pump at the source may stop pumping but water already in the lines could remain pressurized or cause backflow issues; disconnecting the water supply is impractical and unsafe during normal operations.