| I have run trimix in the unit from day one and stayed on mix throughout the dive including deco and I was pretty screwed up after even short 30min deco dives. My buddy was the same. We then started doing pure 02 rebreather deco for the last 15 -20mins of the deco profile and we felt great after the dives.
He is a fast gas and I understand it puts less strain on the body bur even with our deep stops and slow ascent rates it was screwing us up. OC Our profiles used 32%, 80% and occasionally 21/35 for deco and we got out feeling good after dives ranging from 90 mins to 160mins in depths ranging from 40 to 100m. Doing the same profiles and keeping HE in the mix all the way out just didn’t work for us on CCR. So whilst I am still open to its fast off gassing ability I am now convinced it is critical to use pure 02 to get rid of He during the shallow stops.
ATB
Mark Chase
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See my "Doing It Chasey" video where I'm locked into a padded room, naked, with two ball bearings and within an Hour, I manage to lose one and break the other!!!
Kevin Juergensen 16/11/08
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