We put helium in everything we dive. It's much more fun that way. You know
what is really weird? You can see colors better when you are breathing
helium. I have no idea why. Bill Mee and I were doing shallow reef dives on
helium and I was amazed at the intricate colors of some of the invertebrates
we were checking out which I had never noticed on air. We were testing
rebreathers so were spending hours on the reefs and so we looked at
everything . I later noticed the same thing at 100 feet on another dive.

Also, you will find that it is a hell of a lot easier to decompress from or
with any helium based gas.

-----Original Message-----
From: Manos Manoli [mailto:cytech@ma*.co*.cy*]
Sent: Tuesday, July 03, 2001 11:09 AM
To: Tech Diver
Subject: 33m Narcosis


Something i got it sorted ,  and  i want  to share !!

Ok last month i  dive a wreck on 65m for 35minutes.
I used Trimix 18/40 , nitrox 36 , and O2 on 6m.
After  a deep stop on 45m i moved on to33m where  i switched to ean36.
Although 33m doesn't sound much as a narcotic depth after 2
breaths my head started to spin like hell. I felt like being in a barrel

rolling down a slope...i switched back to my bottom mix and stayed there

for a while.  , i stayed a bit more and i switch again on my deco
mix at 27m the barel stoped !. I have  learned my lesson...... I have  a

friend who works in a lab , i had him checking my deco gas... levels of
Co2
 where acceptable..
Trey suggested to add a bit of He on my deco mix and i did on the next
similar
dive i was  fine. I wonder what caused so much  narcosis at such a depth
?
Could it be that i was tired all day long on board searching for that
wreck ?

So here im from now on i will switch on trimix 36/20 or better
ill stay a bit more to my bottom mix and  switch to 50/50 on 22m..

Manos Manoli
www.smiley.cy.net/cytech

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