Sideband:If you got a full breath then how did you know you were out of air?
Joe
I ran a tank out once by accident - my fault, went down with a tank that only had 300PSI or so and didn't do a predive or descent check. Learned a good lesson that day, now I listen to my own advice on the BWRAF issues. I knew I was out on the third to last breath when the draw changed. I had someone right there and was only in 40' so there was no need for a CESA.
Just curious as to how many regulators out there that aren't noticeable 'til the last breath. The other thing is, you would somehow have to draw your final bit of usable air at the exact moment you finish inhaling not to have at least some air available on the next breath, the odds of that are low I'd think.
later,