Any dive in a cave deeper than 130 feet should be a trimix dive. Deep air in a cave to 185 feet is not smart.
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Any dive in a cave deeper than 130 feet should be a trimix dive. Deep air in a cave to 185 feet is not smart.
I agree, but saying it that way practically invites people to cite examples that may seem on the surface to refute your statement. The (flawed) logic being "If I/he/she survived, how dumb can it be?"
I prefer to point out that whether a dive to an END below 120-130 ft can be done safely is more a matter chance as doing it safely depends to a large extent on nothing going wrongas your cognitive abilities to deal with a problem are going to be significantly reduced if/or when something does happen.
Exactly.
can this be done in BM? I've never done P3
It could alternatively be construed to mean that it is not safe for some of the readers. I'm sure there are literally thousands of divers who have better skills than I in some fashion: be it buoyancy, propulsion, referencing, surveying, etc. I would wager that some of those same divers do not have the mental capacity to multi-task while in (what some consider) an impaired state. The level of impairment for some may be extraordinarily high compared to some of those whose tolerance for- and ability to function while under its influence- nitrogen narcosis is negligible.
Of course I'm being defensive, but did anyone expect otherwise when their rationale is questioned? By implying that my behavior is stupid, some have interjected an ad hominem argument where none was necessary. Let me return the favor: perhaps someone's reluctance to complete tasks because their cognitive abilities may be infinitesimal compared to other divers, coupled with their lack of civility when broaching the subject, leaves them with no other choice but to belittle those with which they disagree.
Ad hominem attacks do nothing to further the conversation, do they?
I am blessed to be 75% ambidextrious, and have endured hundreds of batteries involving task-loading under duress (mostly those involved with military training and tactics and construction management), so my ability to function with little to no decrease in performance while enduring the narcotic effects of breathing air at depth is commensurate with all other aspects of my life. I am not, however, blessed with efficient lungs and most divers will probably still be breathing their stage while I have already switched to back gas.
BTW- I suppose that the disparity (>30%) between some of our run times to the rock at the jump can be attributed to dropping the stage earlier, thereby ridding oneself of drag and the additional effort required to negotiate some of the tighter areas within the cave. Also, not running a reel would free up some of that time as well...surprised nobody mentioned that.
No worries Gator. I have yet to make a recreational dive on tri-mix. I really am going to try it sometime though.
I notice its effects when I am past 220'. From there on down, even I don't breathe air. Be prepared to empty your wallet when you start doing it regularly...
Never dove a tri-mix mixture, dove a Heliox mixture countless times.