In another thread, Thom posted "I've been vacuum bleeding using engine manifold vacuum instead of a hand pump (way easier on the hands!) and a peanut butter jar with tubes epoxied into the lid for the fluid reservoir, but I'm considering going to the aircraft pressure bleeding method where fluid is pumped into the system at the bleeders. I have a cal-gas bottle that I can install a siphon tube into, just need air pressure regulator capable of only a couple psi. ....."
If you're pumping brake fluid into the bleeders, don't ya need a way to keep the master cylinder reservoir from overflowing? The idea of a reservoir cap with a tube running to a big enough overflow vessel. What has always appealed to me is pressure bleeding forces the fresh fluid in the same direction that air bubbles want to go anyway. I'm probably overthinking this - just how I roll
BC