Lessons I must be a slow learner

[steinbil]

0.5cuft/min is not a very high RMV, btw. I’m a tall and somewhat athletic guy, with big lung capacity. I dont see myself ever getting much below 0.5, even when I hardly move at all, but I know smaller females with half that RMV.

If you’re talking about RMV under exertion there‘s only a few solutions:
- Don’t exert yourself
- Improve cardio

Sorry to continue the RMV debate, back to topic…

Yes! If you need more gas, bring more gas!

 

[Lorenzoid]

Yes! If you need more gas, bring more gas!

That was apparently the solution for me. When I know I have more than enough gas, I seem to relax more, and my RMV is lower than when I know I have just enough gas. I bring more, yet use less. Go figure.

 

[scubadada]

Hi @JohnN

Your RMV is not high, it is a little below average. Everyone's RMV goes up with exertion, unclear if yours goes up more than others. Everyone's RMV goes up in cold water, equipment and simply being cold.

If you can improve your physical fitness to decrease the effect of exertion, consider doing so. You know your gas consumption, carry enough gas. For a recent, relatively challenging liveaboard, I gave average depths, dive conditions and dive times to help people judge their gas requirements. The boat supplied both AL80s and AL100s.

Trip Report - Return to Malpelo, July 20-30, 2023 on Colombia Dive Adventures, Ferox

...I took those 2 quotes together because in combination they suggest to me Malpelo's diving can be a bit 'challenging,' and averages deeper than some of the mainstream Caribbean destinations, so air consumption for people who aren't particularly good with it could be limiting. At least that's...

scubaboard.com

I believe every liveaboard I've been on has offered larger cylinders upon request.

 

[BoltSnap]

I don't wish to reopen the whole SAC/RMV debate

Oh come on, it is so much fun