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AD_ward9 · 1st January 2008, 19:35

Quote: (Originally Posted by Janos)

What do you do if you find a nice piece of brass, a couple of kilos of scallops, or an unconcious diver?

I can't see that diving without an easy-to-use BC is going to be practical.

Janos

The scallop bag is dragged along the bottom anyway, until it goes up on the SMB. Carrying scallop bags up attached to your person is a pain, especially big ones: even hanging below they get tangled up in the line. This is all about streamlining.

The unconscious diver should be neutral (mouthpieces should have retainers, as EN14143 describes, so the Rebreather does not flood). In a flood, one can put in a squeak of gas (which is why I suggested 300ml cylinders rather than 50ml, as that is all that is really needed if it is just a one shot per side).

The brass goes to the lift bag. It is a hazard bringing up lumps of metal. They get in the way, need attention, and when they fall off your kit, they can cause quite a surprise.

Which leaves the problem of the cylinders getting lighter as the dive progresses, especially big bail out cylinders.

Thanks Teoman, but the idea is not to send your rebreather up on its own. Just imagine how well that would down .... he jumped in the water, then the next thing was saw was his rebreather floating around ... we rescued that but he wasn't attached, but you'd never guess what, the beggar was still alive on his bail out and he had a transponder with him. The lifeboat crew and police gave us a real hard time. Last time I'm having a rebreather nut on my boat .... Just in principle anyway, getting rid of the rebreather is too risky underwater.

Mverick's thought on hoses under the arms is quite interesting. Some RBs do that. The MSA HAZMAT rebreathers as an example. We did some experiments four or five years ago using a drilled out Autoair. Will think about that some more, as it is good to keep the shoulders free.

Alex

1st January 2008, 19:35	#31 (permalink)
AD_ward9 So much more to learn Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 1,854	Re: Getting rid of the last bits of junk ... Quote: (Originally Posted by Janos) What do you do if you find a nice piece of brass, a couple of kilos of scallops, or an unconcious diver? I can't see that diving without an easy-to-use BC is going to be practical. Janos The scallop bag is dragged along the bottom anyway, until it goes up on the SMB. Carrying scallop bags up attached to your person is a pain, especially big ones: even hanging below they get tangled up in the line. This is all about streamlining. The unconscious diver should be neutral (mouthpieces should have retainers, as EN14143 describes, so the Rebreather does not flood). In a flood, one can put in a squeak of gas (which is why I suggested 300ml cylinders rather than 50ml, as that is all that is really needed if it is just a one shot per side). The brass goes to the lift bag. It is a hazard bringing up lumps of metal. They get in the way, need attention, and when they fall off your kit, they can cause quite a surprise. Which leaves the problem of the cylinders getting lighter as the dive progresses, especially big bail out cylinders. Thanks Teoman, but the idea is not to send your rebreather up on its own. Just imagine how well that would down .... he jumped in the water, then the next thing was saw was his rebreather floating around ... we rescued that but he wasn't attached, but you'd never guess what, the beggar was still alive on his bail out and he had a transponder with him. The lifeboat crew and police gave us a real hard time. Last time I'm having a rebreather nut on my boat .... Just in principle anyway, getting rid of the rebreather is too risky underwater. Mverick's thought on hoses under the arms is quite interesting. Some RBs do that. The MSA HAZMAT rebreathers as an example. We did some experiments four or five years ago using a drilled out Autoair. Will think about that some more, as it is good to keep the shoulders free. Alex Last edited by AD_ward9 : 1st January 2008 at 19:48.
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