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At 10:13 AM 2/9/96 -0500, you wrote: > >To decompress on pure O2 or on Nitrox is going to cost my wife and I at >least 20 bucks a dive. This can amount to some substantial bucks. >What I want to know is: "Is air deco really 'unsafe', or is it just less >safe." Does anyone have numbers about DCS hit rates with deco on different >gases? I'm really looking for concrete numbers here, not speculation. > Andy, Sorry I don't have the numbers you're looking for, but how are you getting your O2 cylinders filled? I get O2 in 300 cu. ft. cylinders for about $25 and can get several fills (of decreasing pressure) in my steel 72. I usually, however buy two cylinders and fill off the lower cylinder to get the pressure up and then top with the full cylinder. This gives me several fills at a higher pressure. Some medical oxygen shops ask for a prescription, but I asked around 'til I found one that would sell to me directly w/o a prescription. Reasonable economy measures are fine, but where safety is concerned, I'd rather find a less expensive way to fill my cylinder rather than short-cut a proven safety measure. JoeL
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