Slym
Contributor
I put my deposit down for my intro to tech, cavern, and cave 1 course in Febuary and have been reading the books religiously. Few statements in the book are made that don't seem to have a follow up. For sure I am going to bring it up with the instructor but it's always nice to have a few perspectives.
The book mentions that you need a second source of gas for a drysuit when you are breathing a helium mix, doesn't say why. Is this a cost thing because it's expensive, or does it have to do with how light the helium is? As I know you can use argon as well.
The second thing mentioned is a 0 viz exit by team contact. I just can't visualize it, how would you hold your team mate infront of you on an exit if you need to kick, the only thing to touch is the other persons legs.
I know come my course this will be cleared up but I am loving the new learning and understanding this material I've been given.
The book mentions that you need a second source of gas for a drysuit when you are breathing a helium mix, doesn't say why. Is this a cost thing because it's expensive, or does it have to do with how light the helium is? As I know you can use argon as well.
The second thing mentioned is a 0 viz exit by team contact. I just can't visualize it, how would you hold your team mate infront of you on an exit if you need to kick, the only thing to touch is the other persons legs.
I know come my course this will be cleared up but I am loving the new learning and understanding this material I've been given.