Which option best represents sustained resupply in ARFF operations?

• A. Rapid resupply by tender/tanker
• B. Sustained resupply by pumper/fixed source
• C. Rotating resupply points
• D. Manual supply only

Answer: (B)

Sustained resupply in ARFF relies on keeping a continuous, steady flow of water to the attack line for the duration of the incident. This is best achieved by pumpers drawing from a fixed water source and delivering that water through established lines to the attack engine. A fixed source—like a hydrant or a pre-plumbed supply line—provides reliable volume and pressure, and pumpers can be continuously fed from it to maintain a constant stream to the fire, even as the situation evolves. This arrangement supports long-duration operations and can be extended with additional pumpers or relay lines as needed, ensuring the attack remains uninterrupted and effective.

Rapid resupply by tender or tanker, while useful for quick initial fill, is limited by the tanker’s capacity and often requires frequent reloading, which creates gaps in water delivery. Rotating resupply points introduce coordination complexity and can cause delays as water moves from one point to another. Manual supply only is not practical for sustained operations due to the physical limits of personnel and the burden of carrying or transferring water for long periods.