hay guys by break fluid seems to run out pretty quick about 2 weeks but my breaks seem fine ! and the master cylinder seems to be fine too no leaks from what i can see so i don't know whats wrong ??
its not a breather nipple its a bleeder screw!!!! try looking at your calipers may be leaking or the master sometimes leaks into the booster take off the two 12mm nut and pull it out slightly if its leaking it will be wet insid e the booster.