i was advising some young pump operators when the engine is at a hydrant to put on gate valves on the 2-1/2's when hooking up the 5" espically when you will be pumping a big fire. i was taught this when i was young and in my carrear it has served me well.


one of the last large fires i pumped i caught a really good blue top hydrant and took the time to use the 2-1/2 connections with 2  3" lines in addition to the 5" connection. for several hours i was able to supply a single 5" hose 1100ft to a manifold that went to an aerial and two ground monitors.


i caught a little static being told that "that takes too long to hook up". what i really did was use 2 gate valves on the duce and a halfs of the hydrant and wasted no time making the 5" connection and starting flow. i added the 3" afterwards


anybody agree or disagree with the practice? i estimated my flow in excess of 1500gpm 

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Replies to This Discussion

It's standard to hook a gate valve in my dept.
We have two gates on the end of our Hi-vol, one with a Stortz adaptor. One gate is left open, the other closed. Both are hooked up to the 2 1/2" outlets while the hi-vol is connected directly to the hydrant or to the gate with an adaptor, depending on the outlet.

The open gate is to allow the hydrant to flush when opening up


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