What's the deal with the "Advanced Nitrox" certification?

[Reg Braithwaite]

This conversation has now moved into the Twilight Zone.

Now moved into the twilight zone!? I received helpful answers to the question of how Advanced Nitrox and Recreational Helium courses would or wouldn't benefit me twelve pages ago, including a helpful point from you. Everything else has been sitting back and enjoying the ride. Any additional learning has been frosting on a tasty cake.

I think we all agree that excessive PO2 is bad, ENDs of 150'+ is bad, and combining those two is bad to the bone. But stories about people immersed in dangerous diving is entertaining.

 

[nereas]

As long as you set your own limits and don't get carried away by the abyss topics, sure.

Twin tanks is a good idea whenever you can manage it. Twin LP 80s or LP 72s work great off any beaches. Bigger twins are fine for any boat diving.

EAN 32 is a great mix with numerous applications for all non-deco depths, even including light deco in the range of 100 ft.

Once you start employing a deco bottle, it will probably be EAN 50 for most applications. And the Advanced Nitrox class gives you that ability.

Advanced nitrox is a great class, with particular application to stage deco. These two courses are often taught together, and as a part of them there is also taught ideal buoyancy and a few skills such as SMB deployment, reel line deployment and recovery, valve shut-off drills, and OOA sharing with a long hose.

Thus if the only tech classes you ever take are a combination of Advaned Nitrox and Stage Deco, then that is often all you would ever need for diving down to 100 ft.

And everything depends on finding a great instructor whom you get along with personally. So that is whom you need to find.

 

[jtivat]

Mark Ellyatt ('nuff said )

Mark Ellyatt Scuba Depth Record

Real men plan with an END >70m

I don't really know what to say after reading that!

 

[texdiveguy]

I don't really know what to say after reading that!

Maybe --- Crazy!!!

 

[Rhone Man]

This conversation has now moved into the Twilight Zone.

SB threads are definitely a journey and not a destination...

 

[String]

Mark Ellyatt ('nuff said )

Mark Ellyatt Scuba Depth Record

Real men plan with an END >70m

Has he ever managed to complete a dive where he HASNT bent himself?

 

[JeffG]

Has he ever managed to complete a dive where he HASNT bent himself?

or lied about.

 

[williama]

This is a pretty good thread.

I am currently in the middle of a NAUI Recreational Trimix Class out of Miami (Instructor's site Home Of The Runawaylobster). We completed the classroom over 3 nights and we are getting ready for diving at the end of the month. I have really enjoyed the class and learning/discussing in person. Our group of 6 is made up of a couple of cave divers/tech divers and recreational divers. That variety of folks sure has pushed the limits of "Recreational" and our instructor has been great at answering questions but at the same time reminding us that is covered in future levels.

I am bottom time junkie so deeper diving is not on my radar at the moment. I had stayed away from trimix previously because of the deep diving requirements. I am glad to see a couple of agencies doing recreational trimix because it certainly fits the diving depths that I plan on visiting. I'll let you know after the dives if it was worth it. The classroom sessions were pretty solid at expanding what I read in the book and helping to plan our upcoming dives.

My local shop charges $35 for a single 80 of 21/35 - Double for doubles. I am sure it will go up for bigger tanks that I'll be using for cave. My diving planning for the next couple of months will probably adjust based on this significant expense. Needless to say for this type of diving my buddy list just got very short since I'll want to maximize the diving

 

[Rhone Man]

John Chatterton hosted a "webinar" last night and one of the reasons he was giving for "rebreathers are the future" is that you charge your rebreather up with about 15 cu ft of Helium as a dilutent, and come the end of the dive, you still have a big chunk of it left. You charge up your open circuit twin 80s, you are talking about 60 cu ft or so of Helium, and when it is gone, it is gone.

 

[texdiveguy]

John Chatterton hosted a "webinar" last night and one of the reasons he was giving for "rebreathers are the future" is that you charge your rebreather up with about 15 cu ft of Helium as a dilutent, and come the end of the dive, you still have a big chunk of it left. You charge up your open circuit twin 80s, you are talking about 60 cu ft or so of Helium, and when it is gone, it is gone.

That is a plus on the side of CCR's when the diver gets to the trimix level of CCR diving.

I have not yet found to much other that attracts me to want to switch from OC to CCR. Though they are slowly making head way into recreational diving, it's still a few more years till I think they will be truelly main stream. Of the folks I know in diving I can count only a handful or so that are CCR divers, as OC is still the most popular means to date.

But with advances in technology and CCR manufacturing this part of diving has become more front page news at times.

Rock on to those diving CCR's!