JARblue

Don't go above 15 psi with a pressure bleeder. 10-12 psi should be more than plenty. And yes, it is a good idea to always pressurize the bleeder without fluid first so you can inspect the hoses and clamps for any leaks or problems without brake fluid spraying everywhere.

Vacuum pump > pressure bleeder for brakes. I have a much nicer vacuum pump now. My motive power bleeder is far superior to the cheap vacuum pumps (like a cheap Mityvac) but much more of a pain than a good quality vacuum pump.

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