Hey, Art-

Read my email about accessing the archives. This is one of those subjects 
which has been beaten to death, buried, exumed, beaten, stabbed, buried, 
exumed, shot, runover, buried, exumed, whiped, tortured, garroted and, at 
last check, buried again.

   Jim

On 10/9/97 11:24 AM Paltz, Art wrote:

>Art (trying not to be a stroke) writes,
>
>Caveat:
>I'm not debating the need to O2 clean anything!!  I don't have a cascade
>system or know anyone who does.  I don't do enough diving to warrant the
>cost IMHO.  I dive about once a week (2 tank boat) between the months of
>May and October, then about 1-2 times a month during the winter.
>Already had to "dedicate" a set of tanks for NITROX since only NITROX
>stations will fill them with the sticker on!  Lets ASSUME you need to O2
>clean things for more than 40% O2(just for a moment).  I do since I rely
>on the need to have tanks filled at a shop.  
>
>
>Was thinking about something, it's very scary!  :-)  My question is
>this.  Without being tri-mix certified or knowing much about it, if
>you're not going to dive more than 40% O2 with tri-mix (don't think this
>makes sense anyway), do you need to O2 clean the reg.??  My (sometimes)
>logical minds says "no way".  I don't believe Helium is combustible, is
>it (assume I failed chemistry 101 :-))?  My thinking is that if I'm
>running a mix of say 20% O2, 40% nitrogen and 40% helium I wouldn't
>"need" to have an O2 cleaned reg.  I'm only using this mix for example
>purposes, have no idea if it would be optimal for any profile.  Please
>no flames, not making a statement, only posting a question.  
>
>Thanks way in advance,
>Safe diving,
>Art.
>art.paltz@r2*.co*
>Last Dive 10/4/97, The Stolt, NJ, 125ft/40 min bottom time, 57 degrees
>F, 28% bottom mix, 50% deco mix
>
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