About Fire Sprinkler Guy

Fire Sprinkler Guy is a focused set of hydraulic calculators and short articles for people who design, install, and inspect sprinkler and standpipe systems.

The tools cover standpipe pressure at the top of a riser, Hazen-Williams friction loss, end-head flow and pressure, feet-inch-fraction math, and soffit sprinkler placement per NFPA 13. Each one solves a specific question that comes up on jobs and in plan review.

The blog covers standpipes, sprinkler hydraulics, and inspection details — written for designers, fitters, and inspectors who need clear answers without digging through spreadsheets.