A heavy-duty ground monitor or deck gun capable of flowing over 1,000 gallons per minute. It is used to knock down heavy fire conditions, protect exposures, or attack a blaze from a safe distance when a structure is too dangerous to enter. It can be permanently mounted on an apparatus or detached and set up on the ground with multiple hose supply lines.
Heard on the job
The roof is starting to sag, so back everyone out and hit it with the deluge gun.
Also heard as
- master stream
- deck gun
- monitor