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Old 04-18-2008, 09:31 AM   #39 (permalink)
dcb
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Cool, what is the diaphram about? Is inlet pressure applied to the non-spring side?

I just realized looking at this that the "marble" is probably the same "density" as gasoline. A heavy marble might not be as accurate, it would have too much inertia, and tend to sink to a low spot, and a light one would tend to float.
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