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something else to check, if he is wearing a hood, the hood may be too small and putting extra pressure on his jaw.

I think the main thing to focus on initially is doing nothing. If you can get to the point where you can hover motionless without making a conscious effort to do so, then everything else gets easier and your air consumption automatically improves.

could not agree more.

If inflating at depth, better to use a closed SMB. The open ended ones when shot from depth have a tendency to release gas if you don't keep enough tension on them (i.e. they lay down and spill gas).

yes, it is an acronym for: Some folKs belIeve aNything

I wouldn't dive with such a diver either. It's not a personal attack, just personal preference. why are you trying to pick a fight with such snarky remarks? mty stated his/her opinion, and is entitled to do that. The trend of the thread is to take the statements with a grain of salt and mty has...

I too am a little skeptical when a person's first post is a complaint. I am guessing the youtube videos were posted by the OP (mty - Matty G), how am I supposed to determine if the videos are authentic without something to identify the instructors, or if the OP just had a bone to pick with the...

I thin hi PPO2 combind wit a ignishin sorce iz liklee to mak a fire in you're regular

With a current hydro, it's a great deal

I think the issue you are running into is that most divers that set their algorithm and gradient factors just don't care about NDL and are only interested in how much deco will be involved. As such, there really isn't a market for it IMHO.

It's difficult to determine what happened from the article, especially with lines like "he was using gas enriched with oxygen instead of the oxygen tank he normally uses..." Does this mean he would normally do this dive with and oxygen tank? He could have been using something around EAN22, air...

They've been around for a long time, just not around here. Ben Kenobi had one a long time ago, but in a galaxy far, far away. He's no Chuck Norris either.

thanks, didn't know that. As such, I should have responded "...by a tester identified by some combination of the characters B, 3, 6 and 3..." or done a little research :)

It means that the tank passed hydro in July of 2008 by a tester identified as B336 and now needs to go in for hydro before it's next fill since a hydro is required every 5 years in the USA by the Department of Transportation (DOT)

The domain was registered with GoDaddy on May 28th, 2015.

If you are going to bring up Chuck Norris, then he has other options too such as splitting the sea and walking on the bottom or holding his breath for a few hours. ...but James Bond still needs a gadget :)

I think that device breaks down water into oxygen and hydrogen to produce a breathable gas at ambient pressure and as such it is limited only by its batteries that last for days. As you can see in the picture of Sean Connery, he is not breathing due to his lungs being lower than the device and...

A semi dry suit is still a wetsuit and is subject to compression and loss of insulation at depth....and extreme loss of compression and insulation at extreme depths. I don't know what the water temperature was for that dive, but I have to think that they thought about exposure protection. I...

I don't know much about commercial diving, but can't imagine why they would fix it to the bottom. Perhaps Akimbo can answer that.

"we have sunk a 1,300' line..." could mean that they contracted to have the line sunk. However, I don't think stcroixscuba anticipated that his words would be scrutinized to this level and at this point it really isn't all that important how the line got there.