Why didn't you test when you picked up these rental tanks?
They weren’t rental tanks that we had picked up, they were provided by the dive op.
When we got on the boat, they showed us which tanks were ours. We analyzed immediately and were able to call the dive before the boat left the dock.
), we had a case last year of a diver getting pretty damn near death in Switzerland. After 4 minutes at 100 feet, the victim had to be brought up by his buddy, he survived thanks to that, and the docs looking at CO intoxication after having ruled out a bend. I think I had reported this already somewhere... I haven't had the results of the tank analysis, but I suspect it was ugly.