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Date: Wed, 07 Apr 1999 08:23:45 -0700
From: Jeff Waugh <jrwaugh@ix*.ne*.co*>
To: Frank Riffel <frank.riffel@en*.co*>
CC: Bill Wolk <BillWolk@ea*.ne*>, Techdiver <techdiver@aquanaut.com>
Subject: Re: Trimix Question
I pay $63.00 for the same size cylinder.

Frank Riffel wrote:

> Bill Wolk wrote:
>
> > Bottom line -- if you're coming to the States to mix dive -- better call
> > ahead.  It's not as widely available as you might think unless you're
> > prepared to mix it yourself.
>
> Uhh now I am quite surprised. I always though most US gas divers do
> the mixing by themself. I can understand that someone doesnt want to
> do the more dangerous Nitrox fills, but with Trimix...
> Around here it's quite popular to dive easy to mix HeliAir's like 10/52.
> Even if you don't have a filling whip you can easily produce such mixes
> soley with a compressor, a precision gauge and of course an analyzer.
> One further advantage of such mixes is that you dont have to think about
> oxygen service of the tanks & regs. On the downside you only get mixes
> with have a lower ppO2 at MOD and that the mix is becoming hypoxic
> in the shallow regions. The consequence of the lower fO2 (typicaly less
> than 4%) is some extra deco time.
> We do many dives on 10/52 and a ppO2 of around 0.9 bar with EAN50
> and O2 as deco gas. On average dives the additional deco time is
> insignificant (~10 min), if its more we also employ traditional trimix and/or
>
> EAN32 as third deco gas.
>
> Regards Frank
>
> P.S. Whats the helium price in the US?
> We pay ~ $150  for an 320cuft cylinder.
>
> --
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