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John --
Rolling off YOUR air is no problem, the knob is right there.
What happens when you roll off your BUDDY'S air and he
is in front of you, maybe in a restriction or on the line in zero
viz? He has no air and you have no clue. How fast will you think
when this one hits the fan? It's an "Ask Yourself -- Do I Feel
Lucky" situation.
This one's not a hypothetical. Restrictions and zero viz are
when you're MOST likely to roll the left post shut. You need
to know it first -- you're the one who's calm and the one who's
going to have to fix it.
Try coming up with a scenario in which your air being shut
off is remotely as dangerous to your survival as your buddy's
air being shut off. Then think about you being the one needing
the air. When it goes off, are you going to know you have to
get to his left post, and if you're in zero viz, are you going to
be able to crawl over him to get to it without him going ballistic?
Switch your hoses, your way is too dangerous.
Regards
Dave Smith
U Tx School of Public Health
Your post:
----------
From: John Walker[SMTP:techdive@ea*.ne*]
Sent: Friday, July 24, 1998 8:50 PM
To: techdiver@aquanaut.com
Subject: Re: hose routing
If you ran your long hose off your right post and you had to deal with
an out of gas diver, you could experience the reality of roll off at the
worst possible time. Hypothetically, after handing off you long hose
from the right post you grab the back-up reg on your left post, its been
rolled off. Now you have a second, possibly tragic problem.
This an example of why I run my long hose(primary reg)from the left
post.
John
--
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