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In a message dated 5/17/00 8:27:31 PM Central Daylight Time, ststev@un*.co* writes: << Jason, this is ridiculous. If you are diving with a pony bottle, either you are diving with unnecessary redundancy, at the expense of an increased risk of entanglement, or if you actually need it, are diving with a level of redundancy inferior to that provided by the isolation manifold. >> Let me set a scene for you. You are a back up diver, and your primary diver give you a rope signal, he needs help. You go down, he gives you the hand signal, not only is he caught up, but he is hurt, and here it the kicker, he is about out of air. BTW this is black water. What do you do? Do you give him your octo? If yes then what? You can't cut him out. do you go back up get another tank with a reg on it, come back down and give it to him, hoping he is still alive? Or do you give him your pony, which slips right off your set up, go back up get another 80 and then work on cutting him out? I answer yes to the last option. As far as unnecessary redundancy, I don't really believe in those two words. for example, I dive with 3 pairs of shears, and a knife. A pony as you well know, and when I am the primary diver, I have a back up diver ready to come down, and a 90% diver, 90% ready to come down in case something happens to my back up. But hey everyone does things a little different. Thank you Jason Miller NE Oklahoma USARU -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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