About this app
This puts everything needed for accurate flow testing at your fingertips with all the necessary calculators in just one easy to use application. Calculators are included for the following: • Smooth Bore Discharges & Flow/Pressure • Nozzle Reaction for Smooth Bore Nozzles • Nozzle Reaction for Fog Nozzles • Pump Discharge Pressure for standard layouts, with ability to input hose coefficient depending on make and inside diameter • Pump Discharge Pressure with elevation changes and appliances • Pump Discharge Pressure for High-Rise layouts • Fire Flow Formula Calculators for both the NFA and Iowa Formulas • Imperial or Metric units can be chosen Also included are direct links to several Brass Tacks & Hard Facts videos such as how-to setup and calibrate a flowmeter to measuring nozzle pressure. View the entire library at BrassTacksHardFacts.com.
Latest release
What’s New
Bug fixes and performance improvement
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Aug 11, 2026 · 3:21 PM Free