Rebreather World - View Single Post - Incident on the surface

jkaterenchuk · 26th March 2008, 14:18

Quote: (Originally Posted by brockbr)

.

And then it happened - as soon as we got to shallow water, I felt very weird - extremely relaxed, and sleepy. And getting sleepier. I instantly looked at my VR3 - It showed a pO2 of 0.09

The entire episode had unfolded without me checking my pO2 for 1 minute on the surface

I immediately and simultaneously laid on the manual add button and drew a deep breath to kick in the ADV. Within 30 seconds I felt normal again.

Glad everything worked out and you posted this valuable lesson for all to learn. Being relatively new to diving the Kiss Classic as I was reading your post it occurred to me that you injected O2 and breathed in to trigger the ADV. I am not sure what my instinctive reaction might be in the same situation but would it not have been better to immediately turn the knob on the BOV and be on OC? Then your lungs would have had good air faster than sucking it thru the loop. Am I overly concerned that if your PO2 display was reading that low that the air you inhaled to trigger the ADV might have been even lower in O2 content? Maybe too low!

I wonder what others have done in this same situation?

John

26th March 2008, 14:18	#12 (permalink)
jkaterenchuk . Current Rebreather/s: Inspiration Classic Megalodon Classic Kiss Other Rebreather/s: Join Date: May 2006 Location: Lititz, PA Posts: 827	Re: Incident on the surface - mCCR Quote: (Originally Posted by brockbr) . And then it happened - as soon as we got to shallow water, I felt very weird - extremely relaxed, and sleepy. And getting sleepier. I instantly looked at my VR3 - It showed a pO2 of 0.09 The entire episode had unfolded without me checking my pO2 for 1 minute on the surface I immediately and simultaneously laid on the manual add button and drew a deep breath to kick in the ADV. Within 30 seconds I felt normal again. Glad everything worked out and you posted this valuable lesson for all to learn. Being relatively new to diving the Kiss Classic as I was reading your post it occurred to me that you injected O2 and breathed in to trigger the ADV. I am not sure what my instinctive reaction might be in the same situation but would it not have been better to immediately turn the knob on the BOV and be on OC? Then your lungs would have had good air faster than sucking it thru the loop. Am I overly concerned that if your PO2 display was reading that low that the air you inhaled to trigger the ADV might have been even lower in O2 content? Maybe too low! I wonder what others have done in this same situation? John
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