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So, in general, forget the long hose protocol if I am in immediate need of something to breathe with a CCR diver as my only option?
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. It is not hard to cover that little bit of info in an OW course.
I don't think that's such a great idea... as you can tell, there are wide variety of CCR gear configurations (not to mention the occasional SCR!). It is MUCH less standardized than OC. CCR divers are tinkerers, and many even have DIY rigs. My own rebreather (the JJ) has been modified by GUE to be more like a Hogarthian rig with all of the gas back mounted, including two extra tanks, de-inverted valves and a manifold.
So rather than trying to get OC divers struggling with the basics to learn this wide range of information when it might not be used for years if ever, it's better to just have any CCR diver in a mixed team simply go over the specifics of his or her unit, including bailout, BOVs, ADVs, etc... If you are actually committing to diving together, I don't think that's a big expectation.
I think that it's pretty unlikely that you will see a mixed team with (1) a CCR diver with hypoxic dil and multiple bailout tanks, and (2) a recreational OC diver with no technical training or understanding of rebreathers. This discussion would be more for simpler dives.
Yes.. bold and color added to your quote. That is what I meant not an education on rebreathers in any detail. The primary thing I think needs to be introduced to OW diver training is the knowledge that we should not expect an Rebreather diver to be able to share air in the way we do.The information that we need to look for a slung cylinder. To insist on a safety talk about the equipment. OW especially new divers may be too intimidated to call out the CCR diver they may feel is miles above them in dive skill and experience.This discussion would be more for simpler dives.