Dry & Wet Risers Explained

Dry and wet rising mains are intended for use by the fire brigade or other trained personnel.

Dry risers are vertical mains fitted into staircase enclosures or other suitable positions, with outlet valves on each floor and inlets fitted at ground level to enable the fire brigade to connect to the water supply.

Wet risers are pipes kept permanently charged with water either from a storage tank (via a booster pump) or direct from the town's main water supply.

Southern Fire Security Ltd installs dry and wet rising mains to the exact requirements of the surveyors building control and fire brigades.