Off TopicAre you a QOTWer? Do you want to start a thread that isn't a direct answer to the current QOTW? Then this place, gentle poster, is your friend.
(
rob, Sun 1 Apr 2001, 1:00)
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TWWA dry riser is just an empty pipe which runs up a building. The fire brigade connect a hose to the bottom, and a hose on the floor where the fire is - it saves them running hosepipes up stairs, through fire doors, etc.
How water gets into the riser is the fire brigade's problem, and they can work around issues such as temporary disconnection of the local water supply (even assuming the disconnection affected the nearest hydrant)
(
le brian, Tue 16 Sep 2008, 14:38,
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