How many 2 1/2 inch discharges should a pumper have for every 250 GPM of capacity?

The correct response indicates that a pumper should have one 2 1/2 inch discharge for every 250 GPM of capacity. This guideline is based on typical fire service practices that aim to ensure adequate flow rates for firefighting operations. The one discharge per 250 GPM allows for effective and manageable water distribution through a single line that can accommodate the needed flow while maintaining sufficient pressure.

Having one discharge reduces the risk of overloading the pump and prevents potential pressure loss that could occur if multiple lines were used without proper planning. It also simplifies the operation, allowing pump operators to deploy resources efficiently during firefighting scenarios. In scenarios where higher flow rates are needed, additional discharges can be added, but starting with the standard of one for every 250 GPM ensures that the basic requirement for effective water supply and pressure is met.

Other options would suggest an overabundance of discharges, which might complicate the operation without necessarily providing a proportional benefit in flow or pressure, making the operation less efficient. Therefore, the recommendation of one discharge per 250 GPM strikes an effective balance between capacity and operational simplicity in the field.