Jeff - I'm not even going to ask what that pump does.. :dribble:
Question? Why do you need a Mighty Vac to change brake fluid? In my brake bleeds, I've never needed one!
You don't need one. It's only for those lazy people like me. I almost never use the mityvac to bleed brakes unless:1) I want to pull fluid out quickly to get new fluid in, much faster than turn, pump, turn, pump and repeat 40 times.
2) I just installed new lines and again, I want to pull some volume thru quickly without doing the, turn pump, and repeat 200 times.
I do however, always end the mityvac operation by doing the last little bit by hand. Call me old fashion, but that seems to be the best results for me. Why? Glad you asked. It's real easy to pull air past the tube on the fitting and get bubbles. So then you think, is it really bubbles in the line or bubbles being sucked past the fitting and tube.