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Friday, November 20, 2009

Understanding Large-Diameter Hose Performance

Departments that protect areas without hydrants often rely on water from ponds, cisterns and other sources. For transfer distances of about 2,500 feet or more, water tender/tanker shuttles are commonly used. For shorter distances, large-diameter hose may be able to provide more water with less personnel. Before departments strip the old 2½inch supply hose off their engines and replace it with 4- or 5-inch hose, however, there are several factors to consider. Larger hose produces larger flows, but it also costs more, weighs more and takes more hosebed space. In some cases, larger hose takes so long to ...

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