Master streams are typically supplied by what size of hose lines?

Master streams are large-volume water delivery systems designed to provide significant flow rates for extinguishing fires, particularly in large or industrial settings. These streams typically require a robust supply line capable of delivering high volumes of water needed for effective suppression.

The size of the hose line that supplies master streams is crucial for ensuring sufficient water flow and pressure. A 3-inch hose line is often used for this purpose because it strikes an effective balance between water flow capacity and manageable handling. It can carry enough water to support the high flow rates needed for master stream operations, while still being reasonably portable for fire brigade personnel.

Larger hoses, such as 4-inch lines, may also be capable of supplying master streams, but they can be more cumbersome to handle and may not be necessary for all scenarios. Smaller hoses, such as 1-inch or 2-inch lines, lack the capacity to deliver the required volume of water effectively, thus making them unsuitable for master stream applications.

In summary, the use of a 3-inch hose line aligns with the operational requirements of master streams, facilitating the necessary water flow and enabling effective firefighting efforts in larger facilities.