Re: Rebreather

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Posted by Dave on June 12, 2005 at 15:03:46:

In Reply to: Rebreather posted by matt on June 12, 2005 at 06:23:05:

Some fish are quite skittish, and you can get closer to a degree with those, but otherwise, it is not evolutionarily useful for fish to let big strange lurking predators get real close to them just because they are silent.....the claim that you can get real close it almost all hype.

Keep in mind that semi closed circuit rebreathers that are constant flow like Draegers off-gas nitrox about every 4-5 breaths.....these bubbles are faily coarse although an aftermarket diffuser is available.

As to fully closed circuit, there is no offgassing unless ascending and venting gas expansion from your loop....

I have always dived open circuit with an Oceanic Omega.....great regulator......and it never felt cold....on rebreathers, the gas one breathes does not feel warm although it is, but it for sure never feels cold. Plus most everyone diving a 'breather is diving drysuits we're already warm....

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