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To: techdiver
Subject: Re: Trimix diving & O2 Analyzers
From: "JR Oldroyd" <jr>
Date: Wed Feb 10 22:26:29 EST 1993

Forwarded letter from mayne@pi*.cs*.fs*.ed*:
> 
> I took a trimix class last month. We did our trimix dives in a
> cave called Eagles Nest, near Weeki Wachee, Florida. It was a lot
> of fun and I hope to do more. All I need is an oxygen analyzer
> so I can make my own trimix and nitrox. Although I confess that I
> usually enjoy narcosis it was pleasant to have the narcosis reduced
> a bit. Unfortunately someone at the dive shop at Ginnie Springs
> took it upon himself to top off our tanks, which had already been
> filled with 17/33 trimix with air, raising the fraction of oxygen
> and limiting our depth to 240 feet, since we had to strictly adhere
> to O_2 exposure standards in the class. People not in the class were
> going deeper on air, and it sure was tempting.
> 
Who did you do it with?  Tom, perhaps, or Dustin?  I was down in
Branford only about 6 weeks ago, at Dustin's.  I did Technical
Nitrox while I was there.  Good class.  I enjoyed it a lot.  It
was also my first exposure to the Florida Spring systems; something
that I never thought I'd really be into, but found I am.  Spent a
lot of time in Little River; also did Peacock, and Devil's Eye and
Ear.  (Talking of which, which of the two is Devil's Eye, and which
is the Ear - do you know, Bill?)  Anyway, some comments about
your class would be of great interest.  Particularly about the
instruction you received.

Forwarded letter from parker@ca*.wa*.ed*:
>
> But, fortunately I dive and train with a NAUI instructor who has started
> to introduce NITROX to the Seattle area and has scheduled a TriMix course
> this March.  Already, there has been an outstanding reply from people from
> Canada to California!  He is flying a certified TriMix instructor (I don't
> recall who, but I'll find out and let you know) from Florida for a weekend
> to do the teaching!  Even though the course will be horribly expensive
> ($1000), it is considerable cheaper than having to fly to Florida for some
> Mix training.
>
My guess is that'll probably be Tom Mount, too.  He's known for
flying all over the country to give Trimix classes.  He's good,
too.

We are thinking of organizing a similar class up here, in the
course of the summer.  Fortunately, Randy Bohrer lives right in
this area, and will do us one for less than $400 a piece.  You can
guess which one we're opting for!!!

Bill, you mentioned you need an oxygen analyser.  I want one,
too.  I think I may know several other folk who're interested,
also.  And, you never know who'll join this list who'll be
interested, too.  I can smell a deal coming up here.  (You'll
discover this about me, I look for deals...)  What I'm thinking
is that if we can find several people who want one, we may be
able to bulk order and get a great price.  I can already get the
MinOX for about $325ish, or the Teledyne for $395 (both list
prices).  With a bit of negociation, and with the weight of
a bulk purchase, we may save ourselves some money here.  Now,
I'm not familiar with the Teledyne.  Do you have any recommendations?

	-jr

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