Standpipes And Hoses

Standpipes are water pipes that extend vertically through the building to supply fire hoses (Fig. 45-6) at every floor. Wet standpipes contain water under pressure and

Figure 45-6 Standpipe system hose rack.

are fitted with fire hoses for emergency use by building occupants. Dry standpipes do not contain water, but are used by the fire department to connect fire hoses to a fire hydrant or pumper truck.

Separate water reserves, upfeed pumping, or fire department connections feed standpipes. They provide emergency firefighting before the fire department arrives, and are also used for full-scale firefighting. The water supply can be turned on automatically or manually.

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