rear brakes won't bleed

Get a small jar like a pickle jar. Fill it about halfway with fluid. Get a length of vacuum hose that will fit tightly over the bleeder fitting. Put the other end into the jar with fluid all the way to the bottom. Start with the right rear. Open the bleeder valve. Have a friend pump the brake pedal until you no longer have air bubbles in the fluid in the jar. Rinse and repeat for the driver's side. Done.