dry riser

British  

noun

1.  DR.  a vertical pipe, not containing water, having connections on different floors of a building for a fireman's hose to be attached. A fire tender can be connected at the lowest level to make water rise under pressure within the pipe

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Example Sentences

The strategy is to fight from inside the building, with fire hoses plugged into the "dry riser" - a pipe fed by fire engines on the ground.

From BBC

Dr Lane said the dry riser loses effectiveness as the height of the building increases and rely on good water pressure to work against gravity.

From BBC

“Why did Grenfell have flammable cladding and no sprinklers and only one dry riser? Because it was social housing and the decision makers don’t care about the social housing tenants.”

From The Guardian

Mr Atkins is director of M&P Fire Protection which maintained the dry riser in Grenfell Tower and the sprinkler systems of surrounding buildings.

From BBC

The room is linked to a dry riser which runs the full length of the tower block.

From BBC