Surface Supplied...people, people!!

[teknitroxdiver]

Last weekend I was working on the north shore of Lake Pontchartrain with a group of volunteers from my church. While talking with some other guys that were staying at the same people's house as us, I learned one was a diver. After I mentioned that I was also a diver, we started talking about what kind of diving each had done. He was swift to brag that during the last FL mini-lobster, he and some friends had made a 3 hour dive, "because, you know, since we were using one of those floating compressors, it wasn't really compressed air, so we didn't have to worry about the bends". :11:

People, people. I've heard several on here express similar ideas. Unfortunately at that point I had been up for close to 20 hours so I wasn't able to formulate a kind way to have a 'discussion' with him about how he was indeed likely to get bent....now I wish I had've talked to him about it.

If you are thinking about diving a surface-supplied rig (HOOKA or whatever they're calling it), DO NOT think that because you don't have a tank on your back it's not comnpressed air. It has the SAME effect. It has the SAME dangers, if not more. It requires the SAME planning and execution. You WILL get bent doing crap like that.


Think before acting. *whew*

 

[Diesel298]

Well yeah...

 

[Rick Inman]

Yeah.

Other things I've heard can't get you bent:

• Diving with Nitrox.
  
• Diving shallower than 100'.
  
• Doing a 3 min. safety stop at 15'.
  
• Diving with a computer.
  
• Diving within NDLs.
  
• Diving with a DM.
  
• Diving with an AL80.

 

[chip104]

unfortunately here in the PI some fisherman dive with compressed air and have the same attitude. Almost all of them get bent. Hopefully next time you can extend your knowledge to your church mate.

 

[Randy43068]

I heard some old guys once talking about not being able to get bent if using a single tank of air. Is there some history behind this nutty idea?

 

[teknitroxdiver]

I heard some old guys once talking about not being able to get bent if using a single tank of air. Is there some history behind this nutty idea?

could be history, but no logic.

 

[Rick Inman]

I heard some old guys once talking about not being able to get bent if using a single tank of air. Is there some history behind this nutty idea?

OLD GUYS?? I resemble that remark.

Actually, that's what I was taught in my first NASDS OW class back in 1971. We were using 71.2CF tanks, working hard with BCs we had to orally inflate, and so our sacs were high enough that we had minimal bottom times. We dived until our regs stopped breathing, popped the J valve and went straight up.

 

[RPanick]

That used to be true, but they were usually only diving one maybe two dives, and the tanks were smaller. If you are doing a single dive on an AL80, you can get bent, but you really have to work at it. Most people can't get enough bottom time off of an AL80 to get into too much trouble, except at extreme depths.

Note that was a single non repetitive dive. Start into repetitive dives and all bets are off.

Bob.

 

[Randy43068]

OLD GUYS?? I resemble that remark.

Actually, that's what I was taught in my first NASDS OW class back in 1971. We were using 71.2CF tanks, working hard with BCs we had to orally inflate, and so our sacs were high enough that we had minimal bottom times. We dived until our regs stopped breathing, popped the J valve and went straight up.

OLD GUYS?? I resemble that remark.

about the "old guy" inference. What you and Rpanic said makes sense then about not getting bent with a single tank. By the way Rick, these guys were really old. Like 70s.

 

[Randy43068]

However, now that I'm 49, 70's isnt' that old anymore! Egads!