PumpOps
Engine Pressure Calculator
About
This app quickly calculates engine pressure for fire apparatus engineers and operator candidates. It allows users to select nozzles, hoses, and layouts to instantly update pump discharge pressure, with a clear breakdown of the equation used. It also includes reference and training tools for various fireground hydraulics.
What's New in PumpOps
1.4
September 16, 2026
APPLE WATCH APP The main screen, on your wrist. Nozzle, three hose lays, appliances and elevation, and the pump pressure as you turn the crown — the same numbers the phone gives you, off the same department friction loss tables, with the same warning when you go over the ceiling. It runs on the watch alone, so you do not need the phone out of your pocket at the panel. CHECKLIST Your own lists for the things you do every time — coming on duty, packing for an out-of-station shift, packing to go home. Name a list, add your items, tick them off. Reset clears the ticks and keeps the list, and stamps the date you reset it so you know it was today's run. Keep as many lists as you want. GARDEN HOSE FOG NOZZLE 3/4" In the nozzle list at 10 GPM and 50 PSI, for the times you are pumping something that is not a fire hose. CHANGE OVER A change over you share no longer counts the boxes at the bottom. Most of that list does not apply on any given shift, and "6 of 13" read to the oncoming engineer like seven things nobody did. Also: What's New now recaps 1.3, 1.2 and 1.1 underneath the current release, in case you skipped an update.
MoreFAQ
What is PumpOps?
PumpOps is a free utility app designed to quickly calculate engine pressure for fire apparatus engineers and operator candidates. It provides instant PSI updates and a clear breakdown of the hydraulic equation used.
Does PumpOps have ads?
No, PumpOps does not contain advertisements. It is a completely free application.
What devices is PumpOps compatible with?
PumpOps is available on Apple Watch, iPhone, iPad, and iPod devices, supporting a wide range of iOS hardware.
How often is PumpOps updated?
The app was last updated on September 16, 2026, indicating a commitment to maintenance and potential future improvements.
What kind of calculations does PumpOps perform?
PumpOps calculates pump discharge pressure based on nozzle, hose, and layout selections. It also includes interactive calculators for friction loss, nozzle discharge, standpipe operations, and relay pumping.
Can I save my hose lay configurations in PumpOps?
Yes, PumpOps allows you to save and name your favorite hose lays. You can also reorder these presets for quick access to your most frequently used configurations.
What is the age rating for PumpOps?
PumpOps has an age rating of 4+, making it suitable for a broad audience, including younger users interested in learning about fire hydraulics.
Does PumpOps provide training resources?
Yes, PumpOps includes reference and training tools such as interactive formula calculators, a hose coefficient calculator, and quick-reference tables for nozzle GPM and pressure.
