Hydrant Relay

A water supply operation where multiple pumpers are used in series to transport water from a distant hydrant to the fire scene. Each pumper boosts pressure and …

Definition & Operational Usage

A water supply operation where multiple pumpers are used in series to transport water from a distant hydrant to the fire scene. Each pumper boosts pressure and volume to maintain adequate flow over long distances or challenging terrain.

Category context: Core tactics, command, suppression, ventilation, search, and water supply terminology used on the fireground.

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