Pump Chart Generator
Build the laminated card that lives at the pump panel: your preconnects, your lengths, your nozzles — answers only, color-coded by line. The on-screen view shows how every number is built; experienced operators say making your own chart is the best way to learn the math.
Chart header
Extra rows cover a shortened or extended stretch without fireground math.
Line 1
Flow-tested your hose? Enter the measured C — modern low-friction jackets often test well below the textbook table. Leave the table value to use the training default.
Automatic nozzle? Chart from the GPM you intend to flow — an automatic feels "right" across a wide flow band and masks under-pumping, so the chart must carry the number.
Chart preview
Apparatus · Department
Line 1
1.75″ — 150 GPM @ 100 psi NP
- 150 ft
- 150 psi
- 200 ft (set length)
- 170 psi
- 250 ft
- 185 psi
Calibrate to your hose
Textbook coefficients are a starting point — flow tests on modern low-friction hose often measure well below the table, and operators who tested found they could pump lower pressures for the same flow. Flow-test each preconnect with a pitot or flow meter, enter the measured C per line above, and reprint. A chart isn't accurate until you've tested the flow at the nozzle.
Use your browser's "Save as PDF" in the print dialog for a file. Enable background graphics for the row colors.
Unsaved changes — save to keep the chart on this device.
Sanity-check a chart row on the pump panel: set the same line up and throttle until the master discharge gauge hits the charted PDP. Open the pump panel