standpipe(redirected from Wet riser)
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1. A large elevated vertical pipe or cylindrical tank that is filled with water to produce a desired pressure.
2. A pipe or system of pipes through which water can flow, as for the operation of fire hoses on upper floors of a building.
1. (Building) a vertical pipe, open at the upper end, attached to a pipeline or tank serving to limit the pressure head to that of the height of the pipe
2. (Building) a temporary freshwater outlet installed in a street during a period when household water supplies are cut off
a vertical pipe or tower into which water is pumped to obtain a required head.