Bob DBF
Contributor
If this was actually a buddy-breathing air share, it may have been a double drowning related to one or both divers panicing.
I began diving in the era when octo's were rare, and buddy breathing was a required skill to pass basic OW. While buddy breathing is not hard in a controlled setting, if both divers were not proficient in buddy breathing it is a recipe for a drowning in a real OOA, possibly both victim and rescuer drowning.
Very sad.
Buddy breathing was a required skill, and part of the skill was learning how to control the regulator, so that you continued to get air on a regular basis, and control the situation so that it would not deteriorate further. In the worse case, you needed to know how to disengage from the other diver and rescue them against their will if it came to that.
Back when octos were decoming prevelent, a case was made against the octo because it would, over time, deteriorate divers skills.
Very sad indeed.
Bob
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That's my point, people, by and large, are not taught that diving can be deadly, they are taught how safe it is, and they are not equipped with the skills, taught and trained to the level required to be useful in an emergency.