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From: "Scott" <scottk@hc*.co*>
To: <terry-1@ly*.co*>, "Don Burke" <donburke56@ne*.ne*>,
     , "Paul Braunbehrens"
Subject: Re: Re:rec trimix
Date: Sun, 8 Oct 2000 11:06:11 -0700
Run some tables.

Scott

----- Original Message -----
From: Terry Michael <terry-1@ly*.co*>
To: Don Burke <donburke56@ne*.ne*>; <techdiver@aquanaut.com>; Paul
Braunbehrens <Bakalite@ba*.co*>; Scott <scottk@hc*.co*>
Sent: Sunday, October 08, 2000 10:48 AM
Subject: Re: Re:rec trimix


> 32/30 at 110'?
>
> Why not just use heliox.
>
> Or are you afraid of HPNS at 110':))
>
>
>
> --
>
> On Sun, 8 Oct 2000 04:49:59
>  Scott wrote:
> >I don't understand what all the resistance and fear of an imagined risk
is
> >based upon.
> >
> >Oxtox is no more an issue with Triox than with Nitrox.
> >
> >32% Nitrox has an MOD of 110 or so at a 1.4 PPO2.
> >
> >32/30 has the same MOD, and *better* no stop times.
> >
> >Scott
> >
> >----- Original Message -----
> >From: Paul Braunbehrens <Bakalite@ba*.co*>
> >To: Don Burke <donburke56@ne*.ne*>; <techdiver@aquanaut.com>
> >Sent: Saturday, October 07, 2000 4:20 PM
> >Subject: Re:rec trimix
> >
> >
> >> I think that this is where trimix computers come in.  Even if it's a
> >> good "drop in" gas, I'd still like to track what I'm really using.
> >> Also, because of O2 Tox there would have to be some kind of an
> >> "orientation class" at the least.  If you go down to 160 on air and
> >> come back up right away you're stupid, but you won't tox on O2.  A
> >> "drop in" gas would need some serious warning if it has a higher O2
> >> content.
> >>
> >> Cheers.
> >>
> >> Don Burke wrote:
> >> ~
> >> >As variation on the same theme, how about 28/35 as a "drop-in"
> >replacement
> >> >for air?
> >> >
> >> >It is good to 130 feet under any conditions a rec diver will see.
> >> >
> >> >The no stop times are longer than for air.
> >> >
> >> >The END at 130 feet is about 80 feet.
> >> >
> >> >The only downside is cost.
> >> >
> >> >Don Burke
> >> >Chesapeake, Virginia
> >> >
> >> >----- Original Message -----
> >> >From: Jim Cobb
> >> >
> >> >Like I wrote in my post I do not discount proper training. And I also
> >> >mentioned that you should be proficient in mixing nitrox before you
> >attempt
> >> >trimix. But I do submit that you could take a rec diver with 4 dives
> >under
> >> >his belt put a tank of 21/20 on his back and the only thing the diver
> >would
> >> >notice is a more enjoyable diving experience.
> >> >
> >> >I also submit that a large portion of panic attacks suffered by new
> >divers
> >> >is in part caused by the unfamiliar sensation of narcosis. Around here
> >> >beginning divers regularly do their training dives in 90+ ft of cold,
> >murky
> >> >water, a prime environment for narcosis induced clusterfucks. On any
> >given
> >> >weekend you can see these new divers doing panic-stricken free ascents
> >> >popping up like mushrooms all around the dive boat.
> >> >
> >> >Now these new divers should not mix their own trimix but perhaps
trimix
> >> >should be the REAL "safeair" (I still laugh my ass off when I see
> >> >potentially toxic mixtures of nitrox labeled "safeair", what genius
came
> >up
> >> >with that).
> >> >
> >> >Anyway I see your point that some people need training and
hand-holding
> >more
> >> >than others and should be prepared to pay for it.
> >> >
> >> >Jim
> >> >
> >> >On Friday, October 6, 2000, at 06:46 AM, David B. Widen wrote:
> >> >
> >> >Jim
> >> >
> >> >You do not represent the typical diver. You do the research and
reading
> >> >before you jump in. Many of these people will just jump in. The reason
> >for
> >> >training is to ensure that at least some level of understanding and
> >> >knowledge is in place. You are opening a door for people to use
something
> >> >they may not have the knowledge to use and get hurt.
> >> >
> >> >You know some of the same people I do. Would you want to turn some of
> >those
> >> >folk loose on trimix without them getting some guidance? So where is
the
> >> >line between the between those with enough good sense to doit with out
> >> >training and those that need the training to get them on the right
road
> >and
> >> >doing thing right.
> >> >
> >> >Trimix diving is technical diving. There is more to technical diving
them
> >> >just having the equipment, some O2, and in this case HE.
> >> >
> >> >David
> >> >
> >> >-----Original Message-----
> >> >From: Jim Cobb [mailto:cobber@ci*.co*]
> >> >Sent: Wednesday, October 04, 2000 3:55 PM
> >> >To: Paul Braunbehrens
> >> >Cc: Mcinnis, Don; 'RDecker388@ao*.co*'; scottk@hc*.co*;
> >> >techdiver@aquanaut.com
> >> >Subject: RE: clarification was: An the beat goes on and on
> >> >
> >> >While I am not discounting the need for proper training, you don't
need
> >> >squat for certification to dive with trimix. I have yet to see a
> >industrial
> >> >gas supplier ask for a c-card for tanks of 02 and He. And as far as
the
> >the
> >> >air tops are concerned it's pretty much a "don't ask, don't tell"
policy
> >at
> >> >the dive shops I've visited. If your diveshop is an asshole about
this,
> >then
> >> >it's time to move on.
> >> >
> >> >Personally I believe that if you are proficient at mixing nitrox and
are
> >> >currently mixing it on a regular basis, there is no reason one earth
why
> >you
> >> >can't shitcan your nitrox wrist computer, get DecoPlanner for your
laptop
> >> >and go trimix diving. It ain't rocket science, folks.
> >> >
> >> >Jim
> >> >
> >> >On Wednesday, October 4, 2000, at 11:41 AM, Paul Braunbehrens wrote:
> >> >
> >> >No kidding! I'm doing it right now, adv. nitrox, stage deco and
> >> >trimix just because I want to use He. It's actually ironic that you
> >> >have to do a deco class to use trimix. It seems to me they are
> >> >separate subjects. You won't get a fill without it though.
> >> >
> >> >
> >> >Mcinnis, Don wrote:
> >> >~
> >> >>Bob,
> >> >>
> >> >>What's the prerequisite in shingles needed to get into it? Usually
> >needed
> >> >is
> >> >>the advanced nitrox, decompression techniques, and then the "entry
level
> >> >>trimix" course at least. All this for being able to dive with a clear
> >head
> >> >>between 70 and 150'. Scott's point all along is there needs to be a
> >"rec"
> >> >>HOTx course with something like a nitrox C-card pre-req to open up He
to
> >> >>more people without having to go through 4 extra courses (not to
mention
> >> >>about $2000 or more) just to dive HOTx which is by definition
relatively
> >> >>shallow (less logistics) diving.
> >> >--
> >> >Paul Braunbehrens mailto:Bakalite@ba*.co*
> >> >http://www.daw-mac.com Mailing list for digital audio on the mac
> >> >--
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`techdiver@aquanaut.com'.
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> >> >
> >> >
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> >>
> >> --
> >> Paul Braunbehrens mailto:Bakalite@ba*.co*
> >> http://www.daw-mac.com Mailing list for digital audio on the mac
> >> --
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> >
> >--
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> >
>
>
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