How to Shut Off a Fire Sprinkler Head

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A fire sprinkler can rapidly flood a room if left unstopped.
A fire sprinkler can rapidly flood a room if left unstopped. (Image: Jupiterimages/Photos.com/Getty Images)

Fire sprinklers can effectively save lives and property in the event of a fire. Unfortunately, an activated fire sprinkler, either from a damaging accident or tampering, can rapidly cause severe water damage if not stopped. Once it is safe to do so, a fire sprinkler should be stopped to limit the amount of flooding and property damage.

How to Shut Off a Fire Sprinkler Head

Make sure there is no fires actively burning.

Hold a wooden wedge in each hand.

Insert the two wedges — one from each side — into the opening between the sprinkler head opening and water deflector.

Push and tap the wedges together until the water stops flowing.

Tips & Warnings

  • If several fire sprinklers are flowing, it may be quicker to stop the water flow by shutting off the building's water supply.

References

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