For what purpose are cross connects in the firemain used?

Cross connects in the firemain system are primarily used to connect various firefighting systems. This integration allows for a more efficient response to fire emergencies, ensuring that water can be directed to different areas as needed. By linking multiple firefighting systems, cross connects facilitate the distribution of water to multiple firefighting stations or zones, enhancing the overall effectiveness of fire suppression efforts.

Connecting different systems also allows for flexibility in operations, enabling the firefighting crew to adapt to changing conditions during an incident. This design is crucial for maintaining constant water pressure and supply, especially in larger facilities or vessels where distances can vary significantly.

Fresh water supply, draining water, and filling fuel tanks are not the primary roles of cross connects in the firemain system, as each of those functions serves different operational needs that are not related to the firefighting capability.