mcohen1021
Contributor
So with 900 psi, since you knew where the boat was, you were confident of swimming underwater, a safety stop and a controlled ascent??
What would you have done if you had 200psi when you looked and you were a ways from the boat? These are the scenarios I come up with!!
When I saw the rate of how fast my air was coming out, I knew I had to haul arse back to the boat. With that clear of water I knew my wife would never lose sight of me. Yes, I knew exactly where I was with relation to the wreck, and I knew where the boat was in relation to the reef (you self lead more when you do liveaboards).
I had taken a compass heading from the mooring anchor to the wreck. Then I took another compass heading from the wreck to the nearby reef. So instead of following my path backwards, I diagonaled (shortest path) back to the boat), came up to the 15' zone and safety stopped. My wife caught up eventually, and did the full 3. I was prepared to take the tank down to 0, and if needed either buddy breathe or do the surface swim. BTW - when you get down that low, you'll notice you are drawing hard on the regulator rather than it flowing easily.
PS: I was just looking at my dive profile and my ½ tank point was @ 21 minutes - typically that happens under similar conditions @ 41 minutes!