great discussion everyone!
exactly the kind of feedback i was hoping for, especially from such experience and knowledgeable divers.
just to be clear, we are not discussing pushing our limits and then employing these techniques as a fail safe or backup. of course it is always better to concentrate on diving well within ones limits BUT in the case of an unexpected hairy situation what is the BEST way to stave off BO and get yourself to the surface?
Quote:
Originally Posted by laminar
If anyone decides to use weight belt release as a safety measure, then I would suggest releasing the belt buckle on every deep dive to make it automatic, otherwise the odds on not doing it are against you.
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good advice! trux, sounds like you already do this---do you think you could feasibly remove your mask as well?
@pete - really appreciate your feedback from the perspective of a safety diver.
if one were to use the mask technique as well it certainly would have to be drilled and drilled until it could be done automatically.
Quote:
Originally Posted by island_sands
I wouldn't remove my mask, for risk of water inhalation and also remember monkey see monkey do, someone else might see you doing it and then panic, inhale. You dont have visibility with your mask removed and may become disorientated. Also why would you want to expend even more precious energy and O2 by removing your mask?
One person's "new safety protocol" doesn't necessarily mean it's gospel. all that you read on Deeperblue ain't gospel either.
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island sands - unprotected airway is one of the main concerns i have about this technique as well. personally, i don't worry about the vis issue as i have done lots of swimming and diving (shallower) without a mask.
BUT regarding the energy expenditure it sounds like you might actually SAVE oxygen overall by getting it off, which is why i want to flesh out the practicalities of this technique.
QUESTION: do you folks think that removing the mask (and exposing the nasal passages) is an additional risk to water inhalation when in a near BO situation (or other risk)? isn't this risk already present via the possibility of water inhalation through the mouth? is it much greater with the mask off (or for that matter diving without a mask)?
cheers and thanks for all the input.
sean
vancouver
