DjDiverDan
Contributor
I have been "that guy" on a boat twice - both times with a Reg that was just serviced by my Local Dive Shop less than two weeks before heading out to Cozumel! Once, it was a case of the Dive Shop replacing a perfectly serviceable part on my Oceanic Delta Reg with a bad part (a part that was provided by Oceanic in its Refurb Kit) that resulted in a constant positive airflow; it was breathable, but really annoying. Luckily, that reg has an adjustment valve that will allow you to completely shut off air flow, so I could finish the dive with my Octo without a free-flowing primary, and if the Octo failed, I could have easily switched back to the primary. Second time, I asked that an old high pressure hose be replaced, and got a bad fitting, with a real slow leak. Not enough to call the dive, but a constant flow of small bubbles from the pressure gauge connection. So just getting the Regs serviced is no guaranty that something won't go wrong.