Quote: (Originally Posted by
Gilles)

Following our discussion about this, I have made my O2 hose a yellow one to make it obvious what gas source it is.
Gilles,
i have fought with these thoughts for a long time now, and i have come to the conclusion that in case of an emergency and another diver finds you unconscious, then if is a Rebreather diver, or better say an RB familiar diver, i guess he/she should know which is which or should recognize which is which quite fast. if is a non RB familiar diver, do you think he/she can save you in any other way, apart from sticking an oc reg into your mouth? personally i doubt it. off course the colour might increase chances, but i really think that if RB familiar, then one would know. also one would recognize what ADV valve is...
make a poll? statistically speaking, is there any Rebreather diver who is not in a position to recognize an ADV? how many think that an OC non RB familiar diver would recognize an ADV valve, and or which is which on a RB.
just my personal thoughts.
Thanks