Fire pump hydraulics.

Calculate pump discharge pressure and friction loss for firefighting hose lines.

Fire pump operators can use this application to help learn, understand and review friction loss calculations for fire pump operations.

Build simple or complex hose lines with multi - diameter hose, appliances and various nozzle types. Suggested pump discharge pressures and friction loss are displayed and updated live as you build and adjust your hose lines.

U.S. gallons, hose diameters in inches, hose lengths in feet and pressure is in pounds per square inch.

Create and use your own custom friction loss coefficients.

Universal app.

The information contained in this app does not replace approved training for safe operation of fire pumps.


What’s New

Version 2.4

Updated for latest iOS version compatibility.

A link to our NEW APP has been added. Check out Fire Truck Hoselines!

Ratings and Reviews

2.6 out of 5
5 Ratings

5 Ratings

Walton's Mountain ,

Thanks for the 3" but

Thanks for adding the 3" options but since the download I can't select the 3!" option. The button doesn't go dark to indicate it is selected and as far as I can tell only the note pops up advising that the calc is for 3" with 2 1/2" couplings. Does the button not go dark? Is it calculating the DP correctly even though it is not "selected"?

Start water ,

Excellent App Must Have

Excellent app!!! Smooth solid operations, clean graphics, always works. Very accurate calculations with many different options. A must have for any firefighter. Developer is quick to respond to questions. Keep up the great work!!!

Sendthewater ,


Great app. Very useful. Allows use of custom hose coefficients for more accurate calculations with today's varying hose internal diameter.

App Privacy

The developer, Stockydog Creative Designs, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like