What size lines are recommended for backup lines according to the safety officer?

The recommendation of 2 ½ inch lines for backup lines is based on the need for effective fire suppression while ensuring adequate flow rates and pressure. This size provides a good balance between maneuverability and the ability to deliver a sufficient volume of water to effectively combat larger fires or assist in situations where more substantial support is needed.

Backup lines play a vital role in firefighter safety, particularly in high-risk environments. The 2 ½ inch hose is standard for such tactical operations because it can handle higher pressure and water flow, making it suitable for quickly addressing fire conditions that may threaten the safety of primary attack crews. It allows firefighters to effectively manage larger fire loads and improves overall incident response capability.

It's important to consider that while smaller diameter lines can be easier to handle, they may not offer the same level of firefighting effectiveness in challenging conditions, particularly in structural fires. The use of the 2 ½ inch line therefore promotes not just operational efficiency, but also enhances firefighter safety in potentially hazardous scenarios.