brake bleeding..WTF?

OK, consider this one closed. Attempted to bleed the back brakes with the mityvac and I wasnt pulling **** through the slave cylinders. Disconnected the hose from the pressure line (gravity bleeding started so I was on the right track) and still couldnt pull anything, flex hose was solid plugged with crap, couldn't even push a welding rod through it. $20 bucks later, I got a firm pedal. Thanks guys!