Many moons ago when I started being fascinated by the underwater world thanks to JYC, my father sat down and explained all about the SCUBA diving course he'd done with the YMCA back in the 60's. Of the many things that stuck in my young mind was him telling me that if you ever ran out of air you just shared your buddy's regulator: two breaths for you, then two breaths for him and repeat until you safely surfaced.
Fast forward several decades and when I learned how to SCUBA I was taught how to use an octo to share air and that no one taught or recommended buddy breathing any more. I didn't really understand this, mostly because as a poor E-4 at the time I didn't want to purchase a second reg, but the dive shop convinced me it really was a safer option so I went with it.
Fast forward just a few years and in the time I've had to donate my octo twice to other people (insta-buddies on deep boat dives) and man was I glad I had a separate reg to donate b/c people who get low on air tend to be a little excitable.
One last time jump. This past Saturday I finished my DM by demonstrating the 20 skills and finally at the end performing the equipment exchange while sharing one reg with my fellow DMC.
Damned if he didn't panic and bolt to the surface within five minutes of sharing one reg. On average I managed to get one breath for every four he did. Happily I didn't panic and once he bolted put a reg in my mouth and hung out on the bottom. We tried the exercise again and while he didn't bolt this time I pretty regularly got the reg ripped right out of my mouth half-way through a breath.
Now this gentleman I was doing my skills with is a highly competent man and in the past has never been prone to panic, but the absence of being able to breathe for even a short while sent him over the edge.
Nothing I or our instructor could do would get him to slow down or calm down, once we started sharing air he couldn't get his gear off fast enough and kept trying to rush putting mine on.
I'm sharing this because one I found the experience highly unpleasant, two because I know for me it drove home the purpose of having a reg to donate in an OOA situation, and three because I learned I can never know when someone will panic on me.
Michael
Fast forward several decades and when I learned how to SCUBA I was taught how to use an octo to share air and that no one taught or recommended buddy breathing any more. I didn't really understand this, mostly because as a poor E-4 at the time I didn't want to purchase a second reg, but the dive shop convinced me it really was a safer option so I went with it.
Fast forward just a few years and in the time I've had to donate my octo twice to other people (insta-buddies on deep boat dives) and man was I glad I had a separate reg to donate b/c people who get low on air tend to be a little excitable.
One last time jump. This past Saturday I finished my DM by demonstrating the 20 skills and finally at the end performing the equipment exchange while sharing one reg with my fellow DMC.
Damned if he didn't panic and bolt to the surface within five minutes of sharing one reg. On average I managed to get one breath for every four he did. Happily I didn't panic and once he bolted put a reg in my mouth and hung out on the bottom. We tried the exercise again and while he didn't bolt this time I pretty regularly got the reg ripped right out of my mouth half-way through a breath.
Now this gentleman I was doing my skills with is a highly competent man and in the past has never been prone to panic, but the absence of being able to breathe for even a short while sent him over the edge.
Nothing I or our instructor could do would get him to slow down or calm down, once we started sharing air he couldn't get his gear off fast enough and kept trying to rush putting mine on.
I'm sharing this because one I found the experience highly unpleasant, two because I know for me it drove home the purpose of having a reg to donate in an OOA situation, and three because I learned I can never know when someone will panic on me.
Michael