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> Date: Mon, 6 May 1996 22:09:20 -0400 > To: techdiver@terra.net > From: marshall@va*.co* (Barb Marshall Services) > Subject: Re: DCS incident - PFO diagnosed, opinions needed > Cc: adb@he*.re*.or* > Robert: > > I was involved on some of the same chamber runs as Anthony was, and the ... > Jules' theory when dealing with o/w basic students was to dive them in the > chamber as soon as they covered the appropriate theory and preferably before > they had ever used tanks (even in the pool). The idea was that they could ... > I personally had the opportunity to run several hundred basic students > through this program and found the experience invaluable. The stundents came > away with a clear understanding of gas laws, clearing techniques, > decompression, nitrogen narcosis etc. It made teaching the rest of the > course a snap. Profiles run were normally to 130' for about 20 minutes BT > (depending on descent times) on the DCIEM long tables with a 10'/5 minute > fudge factor. There are a great many Southern Ontario divers with a 130' > chamber dive as the first dive in their log books. Ian I believe that a chamber dive should be mandatory for OW I candidates, BEFORE they hit the open water; if I did not have had a chamber ride, where I was able to experience narcosis safely, I would not have noticed that I was narced when I did that 40 meter dive in minus 1 degree water (this was on the Bergeronnes Trader wreck, at les Escoumins, in the St-Lawrence estuary) where I had my free-flow. Knowing that I was narced made me more sensitive to my feelings. If I wasn't, I might not have detected my free-flow in time. ---------------- Pour la Republique Francaise du Quebec ----------------- This .sig is illegal in the states, because it contains a dirty word. Marc Dufour - [\] ACUC6 31874 - TDI CD-0197 - http://www.accent.net/emdx
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