# PumpOps

> Engine Pressure Calculator

Canonical page: [https://chrome-stats.com/d/id6798931183](https://chrome-stats.com/d/id6798931183)

## Overview

- **ID:** `id6798931183`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** TREVOR GREENWOOD WILLIAMS
- **Category:** Utilities
- **Version:** 1.2
- **Last updated:** 2026-08-27
- **First published:** 2026-08-12
- **Size:** 8.21 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/pumpops/id6798931183)
- **Privacy policy:** [https://pumpopsapp.github.io/privacy-policy.html](https://pumpopsapp.github.io/privacy-policy.html)

## Description

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. 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, deck guns, and ladderpipes
- Up to three hose lays, including two- and three-line big water
- Appliances: wye, siamese, monitor, ladderpipe, standpipe
- Elevation by floor or by feet, above and below grade
- Helicopter fill lays included

REFERENCE AND TRAINING TOOLS
- Interactive formula calculators: friction loss, nozzle discharge, standpipe ops, relay pumping, and more
- Hose coefficient calculator with a live flow scale
- Nozzle GPM and pressure quick-reference tables
- Over-pressure warning when a layout exceeds safe pumping limits

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 with adjustable display size

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.

## Rankings

- #1,505,486 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6798931183)