When you find a ruptured pipe, what action should you take?

• A. Close the Main Valve
• B. Isolate the Valve/Cutout Valve
• C. Seal the Leak with Tape
• D. Shut Down the Machinery

Answer: (B)

When a pipe ruptures, the fastest, safest move is to isolate the line at the valve closest to the break (the valve or cutout valve). Closing that valve stops the flow into the damaged section, containing the leak and preventing further flooding, pressure surges, or damage to adjacent equipment. This containment gives you time to assess and repair without the leak feeding through the whole system. Sealing with tape isn’t a reliable fix for a rupture and won’t stop the flow, and shutting down the whole machinery isn’t as immediate or effective for stopping the leak itself. After isolation, you can proceed with draining and repairs as needed.