| If its the same or similair to the Mityvac,yes,grease or ptfe tape on the bleed nipples for definite,as thats where the air is getting in.Also make sure your fluid level in the reservoir is kept topped up as you pump.I was creating too much of a vacuum the first time i used the Mityvac and the second i cracked the bleed nipple it was pulling the brake fluid from the resevoir fast as feck and i didnt keep it topped up.Still got the odd few bubbles coming through but just cable tie your brake lever back overnight and Roberts your mothers brother. | 
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