In general, when should a sprinkler system be shut down?

In general, when should a sprinkler system be shut down?

• A. Prior to beginning salvage operations
• B. When overhaul is complete
• C. When the fire is completely extinguished
• D. When the fire is under control

Answer: (C)

The main idea is that the sprinkler system should stay active until the fire is completely extinguished. Once there are no flames and all hotspots are fully out, you can shut the system down to prevent unnecessary water damage and avoid wasting resources during salvage and overhaul. Shutting off only after the fire is fully extinguished ensures you don’t risk rekindling in hidden pockets or hot spots. If you shut it down while the fire is still under control or while overhaul is still pending, any remaining embers could flare up again and complicate the operation. Waiting until overhaul is completely finished isn’t necessary once extinguishment is confirmed, and starting to shut it off earlier can lead to avoidable water damage. So, the best practice is to terminate sprinkler discharge once you have confirmed the fire is completely extinguished and the scene is safe for overhaul.

The main idea is that the sprinkler system should stay active until the fire is completely extinguished. Once there are no flames and all hotspots are fully out, you can shut the system down to prevent unnecessary water damage and avoid wasting resources during salvage and overhaul.

Shutting off only after the fire is fully extinguished ensures you don’t risk rekindling in hidden pockets or hot spots. If you shut it down while the fire is still under control or while overhaul is still pending, any remaining embers could flare up again and complicate the operation. Waiting until overhaul is completely finished isn’t necessary once extinguishment is confirmed, and starting to shut it off earlier can lead to avoidable water damage.

So, the best practice is to terminate sprinkler discharge once you have confirmed the fire is completely extinguished and the scene is safe for overhaul.