In relay operations, what component acts as a junction box to split a large diameter hose into multiple smaller lines for feeding several attack pumpers?

• A. Discharge Manifolds in Relay
• B. Grid Systems
• C. Distribution Systems
• D. PDP

Answer: (A)

Discharge manifolds are the hardware that acts as a junction for relay pumping. They attach to the end of a large-diameter supply hose and provide multiple outlets, allowing the water to be split into several smaller hoses that feed multiple attack pumpers. This setup lets one high-volume source sustain several engines at the same time while maintaining usable pressure. Grid or distribution systems describe overall hose layouts or networks rather than a single device that splits flow, and a panel used to control or distribute pump discharge isn’t the hardware that physically divides the flow. The manifold is the practical splitting point that makes relay feeding efficient.