Dry risers are an important part of any high-rise building's fire safety system. Usually located in a staircase, they provide a way for water to be pumped up to the upper floors in the event of a fire. Dry risers typically have an inlet at ground level that can be used by the fire brigade to pump water up the building. They also have outlets at each landing on the upper floors, which the fire brigade can use to attach a firefighting hose. In addition to being an effective way to fight fires, dry risers also play an important role in preventing fires from spreading. By pumping water up to the upper floors, they help to keep the stairwells clear and prevent the spread of smoke and flames. As a result, dry risers are an essential part of any high-rise building's fire safety system.