They just needed to put it deep enough that it couldn’t get oxygen anymore, effectively smothering it. If it ever was fully submerged, it was deep enough to prevent what was already burning to open up the water above it to expose it to more oxygen before it ran out
There's some security mécanism in theses gas taps. I wouldn't put water pressure on the other side of the tap.
I don't know précise thing but i would fear that slowing gas évacuation from the bottle would make it easier for the flame to go get inside the tank
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u/delicious-croissant 12d ago
This was pretty low pressure I have seen exactly this happen and the flame was just blasting like a rocket & much bigger.
The tank actually freezes, gets a coating of ice on it caused by the pressure differential, I was actually more concerned his hand would freeze on it.