Brian Brush explains why it is important to not get hung up on the “Spray and Pray” qualities of a nozzle stream when evaluating nozzles in a wide open space or parking lot.
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In the well-read October 2007 Fire Engineering Article “How Kinks Affect Your Fire Attack System” Jerry Knapp along with Tim Pillsworth, Christopher Flatley, and Doug Leihbacher go into great detail how kinks affect your fire flows.
In this video Jerry Herbst reviews the points to consider when conducting your own nozzle evaluation.
Both inline gauges and piezometers can be used to measure psi in your fire flow system.
Nozzle Reaction not managed properly can have a great effect upon the fire attack team.