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In your message dated Wednesday 8, November 1995 you wrote :
> 
> I am so fed up with the problems of getting a mix fill round here (NW
England) 
> that I'm going to have to do it myself. Helium cylinders here (from British 
> Oxygen anyway) only have a 137 bar (2000 psi) fill pressure, so even
cascaded, 
> you're going to loose a lot. My question is this:
> 
> Is there any reason why the outlet from a helium cylinder (appropriately 
> regulated, restricted etc. to approx 1 bar of course) shouldn't be directly 
fed 
> into a compressor inlet to be compressed into the scuba cylinders just like 
air? 
> That way you could drain the helium cylinder practically dry with little more 
> than standard gear. I'm not talking about a lash-up here, proper regulator, 
> hoses, inlet gauge, seals etc. for safety & to ensure no air inadvertently 
gets 
> sucked in. I'm guessing that some sort of 1 bar reservoir is going to be 
needed 
> to smooth out the compressor's first stage inlet pressure variations, but I 
> can't see too many other major problems (apart from - if it such a good idea, 
> why doesn't everybody do it)
> 
> This should be a simple yes or no question and I'm not really interested in 
> anyone's "opinion" about it, so if you don't know what you're talking about, 
> please don't bother to reply. But if you do, and especially if you know of 
> commercially available gear or published information, I'd appreciate it.
> 
> Regards
> 
> ---------------------------------------------------------------------------
> | Paul Chapman    EMail paul@de*.de*.co*.uk*                          |
> ---------------------------------------------------------------------------

Paul

     Jim Bowden used a portable compressor to pump Helium during one of the 
spells in Zacaton. If you require any further info e-mail me privatly and I'll 
tell you what I know.

Chris
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Chris Hellas

EMail:-   chris@de*.de*.co*.uk*,    100422,2334@co*.co*              
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