In foam operations, where is air compressed when using the CAFS system?

In foam operations utilizing a Compressed Air Foam System (CAFS), the air is compressed in the tank/pump. In a CAFS setup, a specialized pump compresses both water and air before they are mixed together. This compression is crucial because it enhances the foam quality, allowing for better stability and coverage when the foam is dispensed. The compressed air creates bubbles in the foam solution, which expands as it exits the nozzle, producing an effective firefighting tool.

This process is distinct from other components of the system. The compressor typically generates the initial airflow but does not directly contribute to the foam generation within the tank. The manifold serves as a distribution point for the foam, while the hose line is simply a conduit for delivering the foam to the fire. Understanding how compression occurs within the tank/pump aids in grasping the operational mechanics of foam generation and deployment in firefighting.