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Why Does It Always Have to be Done That Way?
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Paul Shapiro
Paul Shapiro specializes in the research, development and training of large flow water delivery systems and fire stream management. His extensive research and outcomes of large diameter hose has been published frequently in fire service trade magazines. Paul has made significant contribution to fire response efficiency with his application-based research of large caliber fire streams working with handline and master stream operations.
Paul has been involved with the fire service since 1981, and is serving Las Vegas as an Engineer with the City of Las Vegas Fire & Rescue. In March of 2007 his department gave him the Engineer of the Year award for 2006. He is a certified Fire Instructor III for the State of Nevada, has served on the faculty of many Fire Academies throughout the United States, and was named Instructor of the Year, 1999, by the Colorado Fire Academy. Paul is recognized nationally as an expert in his field, and is also the author of the popular book, Layin’ the Big Lines as well as the producer of the video, Large Flow Water Delivery.
More articles from this author:
Myth 10: The nozzle pressure for a smooth bore tip on a master stream is 80 psi. Pressures higher than this will create a broken stream.
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Reality: Again, I feel that the opposite is true. Nozzle pressures higher than 80 psi can create a harder hitting, farther reaching stream that is capable of penetrating deep into the seat of the fire problem. Nozzle pressures pushing 175 have been successfully used in master stream operations. The rule to remember is to not exceed the maximum allowed inlet pressure for the appliance being used.
This master stream is delivering 614 GPM through a 1-1/4” tip at 175# NP
