What is the minimum number of firefighters needed to advance and maneuver a 2½" handline inside a building?

The minimum number of firefighters needed to effectively advance and maneuver a 2½" handline inside a building is at least two. This is because a handline of this size is significantly heavier and more difficult to handle than smaller lines, such as a 1½" handline. The weight and bulkiness of the 2½" line require more manpower to manage it safely and effectively, especially in the confined spaces often found in a structural fire environment.

Having two firefighters allows for one firefighter to manage the nozzle, which is critical in directing the flow of water toward the fire, while the other firefighter assists in advancing the line into the building. This teamwork ensures better control over the hose, providing support when negotiating corners, stairs, or other obstacles, and enables a more effective and coordinated approach to suppressing the fire.

A single firefighter may struggle to maneuver the line safely and effectively, particularly against the resistance created by the high volume of water flowing through a 2½" line. Therefore, having at least two firefighters is essential for proper technique and safety when operating such a handline.