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From: "Phi Le" <phi@sk*.be*>
To: "MHK" <mhkane@pr*.ne*>
Cc: "aquanaut" <techdiver@aquanaut.com>
Subject: RE: Oxygen Toxicity - using 100% in open water
Date: Wed, 7 Jun 2000 21:05:19 +0200
Mike,

> I'd either find another site, or I'd sit this one out.  This is an all too
common problem with dive planning.  You are forced into a screwed up
situation because the original plan is blown out. So rather than do the
smart thing and abort, diver's try to put a square peg into a round hole.
Procedures are there for a reason, they shouldn't be ignored for the sake
adjusting a dive site.

Conditions changed between the beginning and end of the dive. There was
almost no current at the start. Current was much stronger at the end of the
dive. There was no way it would be known ahead of time (new area of the
world, never dove before)

>What happens if someone get's blown off???  What was the back up plan???

Obviously you have never dove off a live-aboard in areas George would call
"third world countries" :-)  I have dove with people on this list on wrecks
of remote areas from live-aboards with no chase boat. You either do it like
everybody else or you hang up your diving gear. And I am not saying that it
is right. It's just the way it is there.

> Use your spool and you won't have to worry about this.  BTW, I've been in
some pretty serious swells and 10' is never been a problem for me.

True, didn't think of that. The added length could have helped.

> Are you saying you planned a 70m dive and your only deco gas was 02 in
some screwed up fashion???

I *didn't* say that 50% wasn't used.

May be it was a bad example...

The topic was about O2 tox, and I was trying to say that I don't believe
deco at 1.7 *at rest* is worse than deco at 1.6 *working* since everyone
seems to be so worry about staying at exactly 6.00m +/- 0.001m

-Phi

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