Diving into the Unknown Trailer

[vinegarbiscuit]

I know very little about rebreathers - only what I have picked up listening to my husband and his buddies - but it seems that the survivors really pushed their scrubbers hard. One of the surviving divers was in the water for about nine hours. I understand that some scrubbers (e.g., the scrubber in the Meg's "tall" canister) have a pretty long run life - I wonder If they had an opportunity to switch out the scrubbers and cans on their units (loosely speaking, one pound of sorb equals about an hour of run time, right?) for something with more longevity. Bearing in mind, too, these folks were also diving in pretty cold water, which could not have helped matters. I don't know what these guys were diving - a couple of JJs and a couple of Megs, I think? Even with a huge scrubber, it seems they were really pushing their equipment to the limit, and maybe even beyond. Taking also into account the exercise required to exit the cave, and the high CO2 build-up these guys must have experienced as they sought to overcome very stressful situations in the cave itself...the survivors were very lucky indeed.


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