Home Made Brake Pressure Bleeder & Universal Master Cylinder Adaptor

[IntheGroove]

Do not use one of these to bleed your brakes. A commercial bleeder has a bladder between the fluid and the air. You should keep air contact with the fluid to an absolute minimum as to not contaminate the fluid with moisture. I do use a setup like this to backfill rebuilt engines with oil that have oil pumps that can't spun with a drill-motor...