Originally Posted by velociabstract

I've never had favorable results with the one man vacuum system. If the technique is faulty you'll fail. The friend pushing the pedal works well and it's the system I used for years. Now I just gravity bleed one wheel at a time, washing the wheel and wheel well as it drips. Perfect every time. I don't know if it makes a difference or not if the cap is on or off but I always bleed my brakes with it off. Never with the car running, even though I've seen it done that way before.

Les