Quote: (Originally Posted by
Drmike)

This in my opinion is totaly untrue.
I mean its hardly rocket science. You start to feel increasingly anxious, feel increasingly uncomfortable, increasingly stressed, maybe panicy, your RMV is increasing....these are not IMO easy symptoms to miss.....and the more times you experience them the earlier you recognise them the next time. - hence the training observation.
I agree but we are talking about retained co2 which has nothing to do with the scrubber
My obsevations dead spot on. BTW, Isn't that a response we were taught in basic open water traing. Why do so many forget or ignore it?
Dale