File:Fse-dry-and-wet-risers-v1.svg

Fse-dry-and-wet-risers-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 10 KB)

Summary

A wet riser (left) is always full and connected to an automatic water supply; a manual dry riser (right) contains air until the fire service pumps water in through the inlet at street level. Based on Hopkins et al. (2005), pp. 19 and 21.

Original vector illustration for Dry and wet risers, level 2 Intermediate.

Source basis: Hopkins et al. (2005), p. 19 (risers with hose connections on each floor, supplied by pumps and at least one fire department connection) and p. 21 (wet systems filled at all times with an automatic supply; manual dry systems with fire department connections only)
Alt text: Two building sections: left, a water-filled riser fed by a tank and pump; right, an empty riser fed by a fire appliance at a street-level inlet.

Licensing

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:41, 2 November 2026		900 × 600 (10 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Dry and wet risers

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Short title	A wet riser (left) is always full and connected to an automatic water supply; a manual dry riser (right) contains air until the fire service pumps water in through the inlet at street level. Based on Hopkins et al. (2005), pp. 19 and 21.
Image title	Two building sections: left, a water-filled riser fed by a tank and pump; right, an empty riser fed by a fire appliance at a street-level inlet. Source basis: Hopkins et al. (2005), p. 19 (risers with hose connections on each floor, supplied by pumps and at least one fire department connection) and p. 21 (wet systems filled at all times with an automatic supply; manual dry systems with fire department connections only)
Width	900
Height	600