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Air is not used at all. At 04:24 PM 4/12/2000 +0000, you wrote: >But they are not usung mix , they are using AIR. > >At what depth does DIR move from air to mix ? 17 , 100 , 110 ,120 , 130 , >other ? > > >At 02:01 PM 4/12/2000 -0400, Bill Lais wrote: > >Keep in mind that the only time you notice the 15% difference is when > >you're at 300 feet on air <g>. > > > >On a related note, I love to read the ridiculous articles in dive magazines > >that compare regulator performance. They try to find the best breathing > >reg at depths of like 150+ using air. People forget (or simply don't know) > >that when you DIR (add a bunch of helium at depth), the friction is greatly > >reduced due to the overall reduction in fluid density due to the helium. > > > >- Bill > > > >-----Original Message----- > >From: Harris, Paul [SMTP:pharris@cr*.pl*.uk*] > >Sent: Wednesday, April 12, 2000 10:52 AM > >To: 'Drew Glasbrenner'; 'trey@ne*.co*'; 'Cave listserv' > >Subject: RE: Back Gas Regulators > > > > << File: ATT00005.txt; charset = windows-1252 >> > > > >The other reason people (I did anyway) insist on using the end port is that > >in the manual you are told that you will get ~15% better performance from > >that port compared to the others on the turret. > > > >JJ put me straight there :-), I've never noticed any difference apart from > >the > >fact that I did not get the tight bend when sharing. > > > >r > >Paul > > > > ---------------------------------- Kevin Connell <kevin@nw*.co*> NW Labor Systems, Inc http://www.nwls.com Pluralitas non est ponenda sine neccesitate. (plurality should not be posited without necessity - Occam's razor) ----------------------------------
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