Originally posted by: Gravity
Much simpler than divorce. Boyancy changes substantially in the first 30 feet. She sank like a rock...ok. Just because she went to 100 feet doesn't mean she stopped breathing. Assuming all else was fine, she would sit there for 15-25 minutes until her air ran out. Of course, a pinhole in the regulator diaphram would really mess up her day!
I was a SCUBA instructor and trained rescue divers. This is totally lame.
Gravity
You missed that they were already doing the dive, and then swam
against the current trying to get back to the chain. First, you can only swim against the smallest of currents, and even then it tires you out a great deal. That means you will breath much faster and use up your air faster as well.
She probably was low on air at the point they separated because of (a) fear, and (b) working so hard to fight the negative buoyancy and swimming against the current. (As instructors we say "fear floats" because people take huge breaths, increasing their lung volume, which also means they use their air faster.) I imagine if another diver, on the same dive, saw her at the bottom not blowing bubbles, she ran out of air pretty fast.
Low fill? Bad reg? Used too much trying to inflate the BCD? Used it up trying to get back to the chain? Who knows. It's hard to tell because I don't know what depth they were when they were fighting the current.
Whatever happened he's a dumbass.
P.S. Life insurance usually doesn't pay for scuba related deaths, you need a special provision for that, or DAN insurance. (And DAN will
really investigate this one before paying anything.)