Search results

I try to do that at the end of most of my shore dives when I get back into 6' of water or so (that's where I set my buoyancy too). In deeper water, I'll test to be sure I can hold motionless head up or head down as well. Forcing yourself to float horizontally isn't too difficult. Being able...

On a boat dive, where I'm leaving the bottom and heading for the surface, I always do a safety stop. On a (much more common for me) shore dive, I never have, because I spend so much of the dive at safety stop depth or less any way, along with slowly working my way up the slope from whatever...

Also, keep in mind that there are two different groups of Navy divers (leaving out the SEALs): the Diving and Salvage community divers, and the shipboard divers. In a previous life, I knew people from both groups, and they operate very differently. The D&S guys routinely do deep work and deco...

I understand what you're saying, but I think many will misinterpret what you say above to mean that Navy divers rarely go beyond NDL, which (I believe) is not what you mean. I think you mean that they won't go over NDLs without using proper deco procedures unless someone makes the explicit...

This is speculation on my part, but I wonder if he had a regulator freeze up. The air temps were in the teens and low 20s (F) yesterday, and in the 30s for several days before that, so the water would have been quite cold as well.

If it was a clear-cut "If I don't drop my weights, I'm going to die" situation, then you're right. Bit if it's a situation that is less obvious, such as you can't see the boat but you know it's around somewhere (so you know it's going to be a fairly long wait), or the seas are building up while...

I like that idea!

I'm the one that posted above about my shop often showing 1 -2 ppm, and I see the same thing. Open air and tanks filled elsewhere usually show 0.

Check out this video; these are some guys who really have their skills down. I especially like the guy who was cleaning the scull with the little artist's brush while floating neutral. Giant Underwater Cave Was Hiding Oldest Human Skeleton in the Americas

One big one you left out of predisposition is a PFO (though I guess that could be grouped under "underlying medical condition", but a PFO has been very strongly correlated with a susceptibility to DCS.

Yes, 50ppm in free air, 10ppm in grade E (nitrox grade) breathing air.

My LDS normally has 1 - 2 ppm CO in his air according to my COOTwo; he's next to a congested road. An alternate source (which I've only used once) had 0. When I was in Cozumel, the tanks were always 0. The air in the boat read as high as 10ppm due to the diesel exhaust blowing back inside the...

I don't know of one in a SCUBA case either, but could see it happening if the case was heavily publicized.

Just pointing out that a gag order issued by a judge IS enforceable, but normally only applies to parties directly involved in the trial...

Agree that it's a great idea, but also that it's going to be difficult and probably time-consuming.

No, it's not, A diver will never descend as fast as a rock that is equally negative, because the diver has MUCH more water resistance to slow him down.

If they feel better after using EAN, that IS evidence. Just not proof that it's the EAN that is doing it.

Probably not all that rare in cold-water areas. I dive with a full 7mm suit, etc, and a HP117 tank. It takes 20 lb of lead to keep me down when I'm shallow at the end of the dive, so if I'm deep at the beginning of the dive, I'm probably 20lb negative, even though I'm not over-weighted. I'm...

Good and bad depend on which part of your dive you're looking at. Short period waves make it harder to get on the boat, but don't propagate down into the water as far, so cause less surge. Long period waves make it easier to get back on the boat, but the in-water experience won't be as nice...

Meclizine works best if you start taking it (at least) the night before. But it works for me.