A standpipe system is a plumbing network which allows large volumes of water to be brought to any floor of a building to supply firefighters' hose lines. The pipes for this can be observed inside the stairwells of the building.
The standpipe extends from the lowest level of the building to the roof, with outlets at each level. If a fire occurs, the fire department will connect hose at the safest point closest to the fire.
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