Here's one Jimmy Boy; you're in a wreck, the guy in the next room is using a pnuematic chisel while his partner is hammering away on a porthole. When you slipped into the room you are in your second regs second stage got loose and jammed in the doorway. Since you only went in 2 or 3 feet you didn't feel it tug, but there it is dumping all your manifolded gas, and you can't hear it because of the noise and the fact that it's on the otherside of a wall. Worse yet you see some coins in the muck, dig, drop your light and can't find that because you ruined the vis while digging. You trace your lights lead and find it just as you suck vacuum. You say "but this can't happen to me, techdiver said so!" Them you die. On independants you would just switch to your other tank and leave. Nah, that could never happen . . . You go on believing everything they tell you here. I'll have to recover your body. Mark Jim Cobb wrote: > > >I put it to you that not everyone diving a manifold will notice a leak > >so at some point someone is going to lose ALL their gas. > > You are absolutely correct on this. If you are a blind, deaf, totally > clueless looser, you will never notice all of your air leaking out of > your tanks. Well, I'll cut you some slack and admit that if you were > diving under a waterfall you might not notice. Or diving down rapids, or > while dynamite fishing, or perhaps in a waterspout you would not notice. > OK, ok, if you are: > > - Volcano diving > - Hurricane diving > - Red Sea diving (during biblical events) > - Container ship prop-wash diving > - Surf diving > - Sulfurous vent diving > - Tsunami diving > - Jacuzzi diving > - Anti-ship mine testing diving > - Sewer aeration tank diving > > you without a doubt should use independent doubles. > > Jim > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscription/archive requests to `techdiver-request@aquanaut.com'.
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