Which type of foam application system is the most common system used in the fire service today?

The most common type of foam application system used in the fire service today is the around the pump system. This system integrates the foam concentrate into the pump’s water flow, allowing firefighters to utilize the existing water lines to mix and deliver foam effectively. It is straightforward and can be rapidly deployed, making it highly efficient in various firefighting operations.

This system allows for the on-demand mixing of foam and water as it is pumped, providing flexibility in the foam's application based on the nature and scope of the incident. Because of its versatility and ease of use, it has been widely adopted across many fire departments.

Other systems, while they have their advantages, are not as commonly used. For example, a compressed air foam system, which utilizes compressed air to generate a more stable foam, is beneficial for certain scenarios but is not as universally deployed as the around the pump system. Direct injection foam systems and bladder tank systems are also effective but are typically selected for specific operational needs rather than general use. Overall, the around the pump system's efficiency and simplicity make it the preferred choice in the fire service.