Ayisha
Contributor
And what was Carlos supposedly doing with an O2 labelled tank on the Andrea Doria that he allegedly filled with Air - FOR AN ANDREA DORIA TRIP/DIVE???
Man, don't you realise the story/fantasy peddled on the internet is full of holes...
To understand this, you would need to understand some of the group that we're talking about, not specifically the two buddies, but Carlos and his established group. Something that became exposed after Carlos' accident was that the group was routinely filling permanently marked bottles with gases other than what was marked. In other words, it was not unusual for them to have a permanently marked O2 bottle with air in it with maybe a new analysis piece of tape on it, maybe not. Carlos' friend even admitted to it on the accident thread. So unfortunately, permanently marked bottles may or may not have had the correct contents in them.
This group was also known to dive "hot mixes", in other words, O2 contents that most would consider to be too rich for the intended dives. Carlos was previously involved in an accident a few years earlier where the victim was breathing 40% EANx on the Berminham Crane, which lies at about 145 feet, and was seen seizing and was brought up (unfortunately prior to the tonic/clonic phase of the seizure) and the official cause of death was determined to be ox tox. Prior to Carlos' own accident, there were at least 2 ox tox seizures in which the victims survived these "hot mixes" and the cases were never officially reported, but were known to many locals.
So two other lessons that people learned from this and other somewhat related accidents besides "always analyze your gas(es) immediately before a dive", were "never fill a dedicated bottle with anything other than what it is marked for" and "use the appropriate gas for a dive".