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Please bear with me; some stupid questions follow.
*. If it's a good idea for a "tech" diver to use--and to breathe--a long
hose as a way of coping with out-of-air emergencies, then ...
... wouldn't breathing a long-hose regulator be a good practice to
follow for *any* one who dives in *any* situation where a fast exit
to the surface might not be simple -- say, in any dive of 60' (20m)
or more, where one would perforce carry an octopus?
*. How difficult is the head-ducking manoeuver to execute properly?
How much continuing practice does it require?
Sorry if these sound like really stupid questions, but the old American
Red Cross lifeguarding course *drilled* the "suck, tuck, and duck" rear
head-hold defensive manoeuvers -- people had to practice a little
before the procedure became automatic, especially the chin-tuck.
*. Could looping the hose around the neck be a danger in its own right?
What might happen, for example, when a long-hose user is grabbed
from behind by a panicking diver that she does not see? (Scenario
courtesy of Charles Urbanski)?
What would be the bad consequences of botching the "head-ducking
manoeuver" in this situation?
-. any risk, for example, of the 2nd stage's (1) being pulled
from (say) Charles's mouth, then (2) entangling itself in the loop
of hose around Charles's neck?
-. if so, is the scenario that I outlined less probable, and less
risky, than the problems of being all too close to the
panicked diver who grabbed Charles's 2nd stage?
Sorry if these sound like stupid questions, but I've heard enough
panicked diver stories to take them seriously. [One instructor that
we know says he usually gets two or three in his intro classes annually.]
*. So, we don't have the second canister around the waist ....
.... because we're not caving, or wreck diving, or whatever, but we
want to stow the extra hose length.
Any obvious problems with pushing the extra length under one's weight
harness? Or BC straps?
One final apology if this last set of questions sounds equally stupid.
But, if the rationale for the technique is sound for tech divers, then I
see no reason for not adapting the technique for "ordinary" diving as well.
-- Phil
==========
Phil Pfeiffer, Computer Sci. Dept. | Kindness in thought leads to wisdom.
East Stroudsburg University, | Kindness in speech leads to eloquence.
East Stroudsburg, Pa. 18301-2999 | Kindness in action leads to love.
phil@es*.ed* (717) 422-3820 | -- Lao-Tsu
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