If you have it in a bucket of water and you're seeing no bubbles then it is in a line or fitting. Make sure your air line is cut straight and that it is fully seated in the fitting.
The lines are new and cut properly the only fittings that arent new Im at airbagit.com now on my lunch picking them up which is the 3/8 npt to 1/4 air line that were on the bags when I got them. They also used liquid pipe dope so going to use tape instead.