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Over the weekend, I was again thinking about some kind of Rube Goldberg contraption to diffuse my exhaled air and get it behind me and out of my vision. I happened to see somebody using one on some film once, probably some Discovery channel shark film. They had a rig that looked like 4' of vacuum cleaner hose attached to a reg, with a 3 lb coffee-can sized block of foam on the other. Pretty simple, but more bouyancy, hassle, and tangles than I need. They might have started with a two-hose reg, too. This leads me to ask a question of the rebreather users out there: what do we sound like on scuba? If the problem is the exhaust roar, a diffuser would fix it. If the problem is all the Darth Vader click and hiss on the inhale, then we're out of luck, but even C2 must make that much noise. Perhaps I was narced, or more likely just cold, but my final solution (brought to you by the same idiot who thought of the tail-biting kangaroo rat inside the mask as a deco computer HUD) was to route my warm exhaled gas into my drysuit, with a hair-trigger metered (and diffused) exhaust to keep the suit inflation level right. This would lead to huge condensation in the suit, unless you used the reg-to-suit line to slightly chill the air and condense moisture into a trap. Don't sue me if it kills you, but send me royalties if it doesn't. Roger #-------------------------------------------------# Roger Carlson 310-376-4437 h Somewhere off Hermosa Beach, Cal 310-812-0430 w roger@co*.sp*.tr*.co* 310-812-1363 f d #-------------------------------------------------#
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