Hello all,

It's been quite a while since I've been here, and I'm suprised to see how many of the names I remember. I have probably a bit of a pnoob question. The question is kind of two fold.

Question one: what is the formula for figuring pressure increase in the chamber per pump, when knowing the exact volume of the chamber, and the exact volume of the pump?

Question two: So that I have a better grasp of how Boyles law works, if your pump volume was , say 5 cubic inches and your chamber was 5 cubic inches as well, would you essentially after one pump be placing one volume of air at 14.7 psi into another volume of 14.7 psi and end up with 29.4 psi in the chamber? Which would show on a gauge as 14.7psi due to the surrounding atmospheric pressure? And after one more pump would the pressure be 44.1 and the gauge read 29.4?

Tad confused here. Any help appreciated.

Chris

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