All,

I finally got a Mity Vac yesterday, feels like a rite of passage.
Anyway, I got as far as checking the shut-off valve, it kills the engine with just a few pumps.

Now, I am checking lines and connectors, but I'm not sure if I am doing it right:

-I check the lines with the engine off, correct?
-What kind of pressures should I be getting?

Thanks a lot!