I put some fluid in the master reservoir to see if the air was escaping and fluid entering. BUBBLES! Yea! That means brake fluid is displacing the air in the lines. The bubbles eventually stopped and the fluid began to rise in the reservoir so I shut the valves and disconnected the fill/bleed unit. Completed filling the reservoir from the top using a small syringe. Tested the brakes and they seem to work quite well.