Gated Wye Operations - Extended Version (Ep #57 & Ep #58)

In this extended version, combining Episodes 57 & 58, Daryl Liggins and Dennis LeGear review in detail gated wye operations. They discuss the evolution of gated wye operations over the years to present day showing the implications of their use with legacy fire flows, and then show a comparison to modern flows. A variety of different nozzle types are flow tested and shown are the implications that may arise.
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[@NealB123]

Wonder if an automated pump management system such as the Hale SAM would be able to monitor discharge pressure and adjust it on the fly as the individual nozzles are opened and closed?

[@dean1973Ca]

I wonder if you are going to use a gated eye operation with 2 lines a partial fix to the increase pressure to the other line off the gated wye is to only partially close the line. This way the increase pressure is manageable.

[@jbjb1940]

Flowing multiple lines with varying pdp is always an issue on engines with no electronic pressure governor and a manual pressure relief valve. Did I miss something?