Nozzles with flows in excess of __________ gallons per minute are not recommended for handlines.

Nozzles with flows in excess of 350 gallons per minute are not recommended for handlines primarily due to the challenges associated with managing such high volumes of water. Handlines are typically operated by a single firefighter or a small team, and when the flow exceeds this amount, it can become extremely difficult to control the nozzle. The weight of the hose and the recoil from the water pressure can make it challenging to maneuver and operate effectively, especially in dynamic firefighting situations.

Higher flow rates also require more strength and stability from the firefighter, which is not practical for the majority of firefighting operations where agility and quick response are essential. Additionally, managing such high flow rates can lead to inefficient use of water, as well as an increased risk of injury to personnel if they are unable to handle the equipment properly.

By keeping nozzle flow rates at or below 350 gallons per minute for handlines, firefighters can maintain better control, improve safety, and ensure that their efforts are effective in combating fires while managing critical resources effectively.