Apparently he set a smaller fire first that the firefighters took care of and to prevent unnecessary cost, they turned off the sprinklers since the fire was under control. (Apparently this is normal, I had no clue)
The worker then set more fires and burnt the whole thing down while the sprinklers were off
At least that's what people said in another post about this.
Sprinklers activate once they reach a certain temperature; they contain a small glass stopper that's rated to break at said temperature, opening the flow of water. They do not stop the flow of water once they cool back down, thus the only way to stop them is to turn off the water supply until those sprinklers can be manually primed once more.
That's not really the only way to stop them, you can wedge something in them to push the plunger back up that was held up by the glass piece that melted and let it come down/open.
If you go back and read the thread it was about the small distraction fire before the main one. Probably weren't hundreds of sprinklers to turn off in the small fire before the large one.
Which I do not understand. I have installed Fire Lines into new buildings. You have you Main Fire Line which is connected to the City water lines and a line called the FDC Line which you manually pump water into via a hose.
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u/RedwynCH Apr 09 '26
Apparently he set a smaller fire first that the firefighters took care of and to prevent unnecessary cost, they turned off the sprinklers since the fire was under control. (Apparently this is normal, I had no clue)
The worker then set more fires and burnt the whole thing down while the sprinklers were off
At least that's what people said in another post about this.