Today I replaced the entire clutch hydraulic system with a new stainless clutch line from TFS, and Rodney's aluminum master and slave. Usually trying to bleed the air out of the system is a day long ordeal of pumping the clutch pedal and trying to force air bubbles out of the slave. This time I decided to use a combination of Rodney's one way bleeder valve and a vacuum pump to refill the system. It worked really slick - filled and bled in one operation that only took about 20 minutes. Now I have a nice firm pedal and full disengagement.
Yes, any kind of handheld vacuum pump will work, whether it's a MightyVac or some other brand. The vacuum pump draws the fluid from the master reservoir through the clutch line and slave. Rodney's one way bleeder valve is the key to keeping air from being drawn back in to the system when you push the rod into the slave to free the trapped air bubbles in the last step.