What is the result of lower nozzle pressure?

Lower nozzle pressure results in decreased nozzle reaction, which refers to the force exerted by the water exiting the nozzle. When the pressure is reduced, the speed and force of the water stream also decrease, leading to a reduction in the reaction force that the operator feels when operating the nozzle. This phenomenon is important for maintaining better control and reducing fatigue for the operator, especially during extended operations or in situations requiring precise maneuvering of the hose.

In essence, the relationship between pressure and nozzle reaction is significant; higher pressure yields a greater reaction while lower pressure results in less. This understanding is crucial for fireground operations, where managing nozzle reaction can affect both the effectiveness of the water stream and the safety of the personnel using the nozzle.