So, I did a rear brake swap on my ED 3dr. Here is the list of work I did. The rear trailing arms are from a 93 si. Reman DA Integra brake booster New DA Integra master cyl New 93 Si rear calipers New rotors/pads 40/40 valve, very clean SS lines all around New OEM brake line from prop valve to front drivers side wheel well. It was brittle and I broke it putting on the stainless line. I bench bled the the master cyl properly. Hooked up the two lines it came with and used my hand vacuum bleeder. Pushed the pedal and bubbles came out.. I repeated until it stop pushing air out. I hooked up the two lines that went to the the prop valve and starting bleeding the lines from the passenger front, driver front, passenger rear, driver rear. When I did the first two there was a decent amount of fluid that came out but there were still a lot of bubbles. When I moved to the back almost nothing came out. I got some fluid but it was taking a really long time. When I moved back to the front it was pretty much the same as the back. I was hardly getting fluid anymore. I kept going around and still getting pretty much nothing. I never let the fluid go below low on the res. The lines are all tight, the hose from the bleeder seals well. I have the lid on the res. Ideas? Maybe I'm missing something stupid or doing something wrong.. I have never had this much trouble doing this.. but I have never had so much air in the system either.