Reply to "How exactly do auxiliary water cars for steam engines work?"

Hot WaterOGR Forum Member SUPPORTING MEMBER

@Bill N posted:
Anyone else have visions of what happens when the train with half full tenders hits a grade?
Well, if the descending grade is immediately after all the tenders have been completely filled, in the case of SP 4449 where the auxiliary tender is larger/higher than the main tender, the water overflows the main tender. Thus, the auxiliary tender transfer connecting valves are kept closed, until the water level in the main tender as been lower quite a bit. At that point, and the next convient stop, the interconnecting valves are opened, and then the water level equalizes.
I realize its only 1% or so, but between the tender and the auxiliary tender that is some length for the water to be moving around.
Not all that much, even on a 2% grade.

10/20/218:35 PM

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