How should the D/E Candidate manage the pressures in multiple lines during Drill #5?

The best method for a Driver Engineer candidate to manage pressures in multiple lines during Drill #5 involves gating down the lowest pressured line. This technique is effective because it allows for a more balanced distribution of water pressure across all lines. By reducing the pressure on the line with the least resistance, it ensures that all hoses operate effectively without overwhelming the system or causing a drop in pressure in the other lines.

Gating down the lowest pressured line prevents the danger of excess pressure build-up that can occur if all lines are operated at full capacity, which could lead to issues like hose failure or uneven water distribution. This approach enhances crew safety and equipment performance, as each line can deliver water more reliably when managed effectively.

While managing the pressures independently can sometimes be necessary, it is typically more straightforward and efficient to adjust the lowest pressured line first. This principle aims to maintain operational safety and ensure all lines can function optimally during the drill or actual response scenarios.