What best describes a static water supply and its effect on firefighting operations?

• A. A static supply is a water source with little or no flow and may require priming or relay pumping.
• B. A fast-flowing river provides abundant water.
• C. Static supply means water is pressurized.
• D. Static supply is only used in urban hydrants.

Answer: (A)

Static water supply means a water source with little or no flow at the source. In firefighting, that means the water doesn’t reach the scene under usable pressure on its own, so pumps and careful water handling are needed to get water to the fire. You’ll often prime a pump to fill the suction line and then use relay pumping—bringing water from the source to the fire through multiple pumps in sequence—to move water over distance and elevation. Because the flow is limited, crews also plan for longer water delivery times and may use portable tanks or water shuttle operations to keep the scene supplied while building a harder-working intake. It’s not about the water being pressurized, and static sources can be found in urban or rural settings; the defining feature is the low or no flow, not the location or pressure.