Oh and just because the rabbit made me do it, I called Wallins. Their top of the line dry snorkel from Scubapro is $49 (and change) plus tax. Plus Doc's Proplugs are much more affordable than I thought. Perhaps ill grab a pair.
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I will, however, join anyone interested in calling bull**** on rhlee's claim that He in an Ar bottle is as dangerous as Ar in your breathing gas. Dangerous, but I don't think it's quite AS dangerous. I propose an "Argon Breathing Challenge", wherein rhlee and I go for a dive. He can breathe a gas mix containing 35% Argon. I will fill my Argon bottle with Helium. We'll go to Twin Peaks and see what happens. There's just one detail to work out -- Adobo, if something were to happen to us, would you look after the cats?
I was simply trying to make the point that pure Helium in your Argon bottle can be really dangerous. It takes some time to get chilled, and if in that time you've racked up a deco obligation (or put some distance between you and your exit via scooters) you're really in a bad way. Not to mention that aside from the hypothermia, you're probably not decompressing worth a crap if you're that cold.
Point in fact, there has been some research in using Argon in decompression mixes. Go look around the web for Argox. Heck it's even referenced in the GUE T1 text ("Getting Clear on the Basics: The Fundamentals of Technical Diving") I believe.
"But rhlee, It's really narcotic, blah blah blah..." I'm not suggesting to use it as a breathing mix... I was simply trying to make the point that accidentally getting Helium in your inflation bottle can be really dangerous. I believe the literati call it juxtaposition.