Posted by John Walker on August 06, 2001 at 19:29:31:
In Reply to: Re: A note about drysuit valves - cuff dumps rule! posted by AADIVER on August 06, 2001 at 16:57:28:
A seperate inflation system is added when using Helium based mixes. Helium is a poor thermal insulating gas due to is small molecular size. Air is better and Argon even more betterererer.
If diving common mixtures other than helium, you don't need another bottle.
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