What does E3 need to supply their pumper with?

A good water source is essential for a pumper to operate effectively. The primary function of a fire pumper is to provide a sufficient and reliable supply of water to extinguish fires. Without an adequate water source, the pumper cannot deliver the volume of water needed to combat flames, which compromises firefighting efforts. This necessity applies whether the source is a hydrant, a static body of water, or another means of water supply.

In contrast, while having an additional crew member, aerial ladder support, and extra hoses can be beneficial during firefighting operations, they are not the immediate priorities for supplying a pumper. The crew’s size and additional equipment can support various tactics and enhance efficiency, but the fundamental requirement for the pumper's operation hinges on having a solid, adequate water source. This foundational aspect is critical for all firefighting operations.