valve drill

  1. J

    Lessons My sidemount cylinder valve spun itself completely shut during a dive

    What happened: I recently dove a 25-30ft coral reef and cavern area in Isabella, Puerto Rico with 2 friends. I was in sidemount. By about 20 minutes into the first dive, my right cylinder's turnwheel had managed to spin from fully opened to fully closed. More details: At the 20 minute mark I...
  2. jagfish

    Advanced buoyancy drills Valve drill and EQ removal midwater

    Advanced buoyancy drills. A revisit to some prior material I had a lot of questions about. More background, explanation, and critical attributes.
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