PumpOps

Content rating
Everyone
10+
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Content rating
Everyone
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About this app

Pump calculations in seconds, not scratch paper.

PumpOps is a fast, dead-simple engine pressure calculator built for fire apparatus engineers and operator candidates. Pick your nozzle, hose, and layout — the pump discharge pressure updates instantly, with the full equation shown so you always know where the number came from.

BUILT FOR SPEED
• One screen. Seven dropdowns. Instant PSI.
• Live equation breakdown: NP + FL + Appliances + Elevation
• Friction loss shown per 100' for every hose selection

COVERS THE FULL LAYOUT
• Fog and smooth bore handline nozzles
• Master streams, monitors, and deck guns
• Up to three hose lays — attack, extended, and supply
• Appliances: wye, siamese, monitor, ladderpipe, standpipe
• Elevation by floor or by feet, above and below grade
• Helicopter fill lays included

MAKE IT YOURS
• Save and name your favorite hose lays
• Drag to reorder presets so your most-used lays are on top
• Color, dark, and light themes

TRAIN WITH CONFIDENCE
Every calculation follows standard fireground hydraulics used in apparatus operator training, verified against department-style pump charts.

DISCLAIMER: PumpOps is for training purposes only. It is not a substitute for department policy, certified training, or fireground judgment. Always verify pressures against your department's current procedures.
Fast pump calculations for fire apparatus engineers. Built for the fireground.
Updated on
Sep 16, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Apple Watch app — the pump calculation on your wrist. Same nozzles, hose lays and elevation as the phone, and it works without the phone.

Checklist — your own lists for coming on duty, packing out, or heading home. Reset clears the ticks and keeps the list.

Garden Hose Fog Nozzle 3/4" — 10 GPM at 50 PSI, in the nozzle list.

A shared change over no longer counts your boxes at the bottom.
Content rating
Everyone
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App support

About the developer
TREVOR GREENWOOD WILLIAMS
pumpopsapp@gmail.com
United States