What pressure should Engine 3 charge the two 2 ½" hoses to when connecting to the F.D.C.?

Charging the two 2 ½" hoses to 150 psi when connecting to the Fire Department Connection (F.D.C.) is standard practice in fire service operations. This pressure is effective for ensuring adequate flow and maintaining sufficient firefighting capabilities while connecting to the F.D.C.

A pressure of 150 psi is typically established as a balance between being high enough to deliver a substantial volume of water effectively, while also being manageable for firefighting operations without causing excessive strain on the hoses or equipment. This allows firefighters to maintain control over the hoses and provides enough pressure to reach the required operational demands during an incident.

The choice of 150 psi also aligns with industry standards and guidelines for working with 2 ½" lines, making it a commonly accepted practice among fire departments. Thus, 150 psi serves as an optimal charging pressure for achieving efficient and safe operations when connected to the F.D.C.