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[Zparrow]

So y'all might understand this better than I do. http://www.lewissyst...rotwin-oiltwin/

It's a vacuum pump that can pull gas and liquid. I'm lost at where the oil would need to come in, as well as what the graph at the bottom is showing. It seems to compare the model with the booster to the one without? What does that make the green.

Sorry if this is unrelated to the forum, just not understanding what I'm reading entirely.