Where is water directed during hydraulic ventilation?

Water during hydraulic ventilation is directed out a window or door to effectively clear smoke and heat from the affected area. The primary goal of hydraulic ventilation is to use the energy of water to create a flow path for smoke and heat to escape, allowing for improved visibility and air quality for firefighting operations and potential rescues. By directing the water outside, the pressure difference helps draw the heated smoke and gases out of the structure, allowing cooler air to be drawn in, which can assist in controlling the fire and enhancing the safety for those inside.

The technique is particularly effective when there is a significant temperature difference between the heated air inside and the cooler air outside, resulting in a more efficient ventilation process. It is crucial that water is not directed into the building or around the seat of the fire, as this can potentially complicate the firefighting efforts and may lead to additional hazards. The focus should always be on creating a pathway for smoke and heat to exit rather than inadvertently introducing more water into the space where combustion is occurring.