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Kevin, I know nothing about hpns, other than what I have read, and I
make it a practice not to discuss anything outside of my own experience.
If I ever decide to either work for a dive shop or teach diving, I will
change that policy and have an answer for everything, like Ted Green
does. 

  I can tell you this - inert gas total is all that counts in deco, and
I can tell you that helium would be better if it were as compressible or
if it were as easy to get to higher pressures. We pp fill and top with
air, so are stuck with trimix, and for really deep stuff we have to use
lower total tank pressures, which is ok. The trick is to keep the
effective depth as shallow as possible.

Kevin Connell wrote:
> 
> <With the utmost humbleness:>
> 
> Hmm..  I'm not claiming to know anything about the physiology of the thing,
> but if what you're saying is true, why would someone want to use trimix at
> all in depths < wherever HPNS is a problem? Ie/ why not go with 0fsw END
> always.
> 
> All the tables I've seen (which isn't very many) trimix has a friendlier
> deco schedule than heliox.
> 
> Thanks in advance.
> 
> At 11:10 AM 5/15/97 -0400, you wrote:
> >This not really true - the weenies pad the heliox tables - they are
> >the same as any other tables . Helium is your friend. - G
> >
> 
> --------------------------------------------------------------------------
> Kevin Connell <kevin@nw*.co*>
> 
> Northwest Labor Systems
> http://www.nwls.com
> Bellingham, WA
> ---------------------------------------------------------------------------
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