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
> >--
> >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
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> >
> >
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> --
> Paul Braunbehrens mailto:Bakalite@ba*.co*
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