I never was able to use mine to bleed. I have used it for other things. When I bled mine I ran a tube from the bleeder into a bottle with fluid in the bottom and the hose into the fluid. I kept the bottle above the bleeder. Then I opened the bleeder and slowly pushed and released the pedal while checking the tube periodically. If there were bubbles in it I knew I had to keep going.you shouldn’t draw any air in as long as the tube remains blow the fluid level. Once there weren’t any more I stopped. I also cheated and used my iPhone and Apple Watch at the time. You can view whatever your phone camera is looking at on the watch so I used that to monitor the fluid while I pumped the pedal. Not a perfect solution but it worked well for me.
