Rec Trimix

[TheRedHead]

Good point. It raises a question in my mind as to how such a person can evolve without taking a hit to their credibility. What is an instructors obligation to past students he has instructed? It's easy to see how denial, misinformation and an attitude of stay the course could result.

That's ridiculous. You can't equate a difference of opinion with a failure to evolve. Otherwise, you will fall into the stereotype of GUE who believes that everyone else is doing it wrong and if I'm not mistaken, aren't you guys trying to get rid of that image? Just because GUE says it is doing it right, doesn't make it so for everyone. That's pretty dogmatic.

 

[Kevrumbo]

Unfortunately, both of those links are to MHK's posts. He wrote the outline for the course and sells them for $600, so he has an agenda to push it. Using higher concentrations of O2 and helium to depths as much as 130 on a single tank with no backup other than a buddy is not Doing It Right. They will even tell you in the class that the instructors recommend doubles, but teach students in single tanks. MHK says that it is based on divers in the Caymans making an 80 foot dive and wouldn't require doubles. If that is the case, call it a resort course. If they are going to dive to 80 feet on vacation, they will not likely be paying for helium when air and Nitrox is available. I really believe GUE lowered their standards on this one.

Of course he has an agenda to push . . .he has a fee to provide an educational service & training and should be duly compensated. Duh! --doesn't that make sense! It's all about learning common gear configurations, proper techniques and planning to get you safely to the Recreational Depth Limit and back again. The point is, use the proper tool for the proper dive: An 80ft wall dive in benign tropical conditions, use 32% Nitrox. For penetrating the HMCS Yukon in cold water, poor viz, and surge at 90ft. --use 30/30 Trimix in Doubles.

 

[amascuba]

He is right, and this is not the only disadvantage of helium.
The thing is, helium has definite advantages for deep diving (although hydrogen would be better). But some agencys have gone a little bit overboard and now tell you nitrogen is all bad and helium is all good. I suspect this is only a response to the real deep dives made on air not too long ago, and a consensus will be reached in a few years where we will use trimix for the depths where it makes real sense.

mart

?? Please explain the hydrogen comment. I thought h20 = water? How would breathing water be better? And yes I know that you need two parts hydrogen to every part of oxygen, but still.

 

[Tom Winters]

If you can afford the gas, nothing wrong with 30/30. The problem is to fill one of my big steel tanks (160 cubic feet+) to an appropriate pressure costs $50.00 @$.30/cubic ft versus $11.20 for nitrox (a mere $.07 per cube).
An empty 100 is $30 for 30/30 and $7 for 32%. This adds up over time rapidly. It's like everything else in diving - some people have rebreathers and all the fixings and others bemoan retiring thier 30-year old 6351 Luxfer shopkillers.

 

[MikeFerrara]

Mike, I already finished the TDI Advanced Nitrox/Deco Procedures classes. I was curious as to what part of Tech1 is Advanced Nitrox or if it is omitted altogther in Tech1? Trying to compare Tech1 to TDI and the website doesn't help.

My understanding is that the rec triox class is essentially the first part of the tech1 class. If that's correct, I don't know exactly how much of tech1 is covered in rec triox. You might shoot BCS or one of the other GUE instructors on the board an email or even ask on the DIR forum.

 

[Kevrumbo]

That's ridiculous. You can't equate a difference of opinion with a failure to evolve. Otherwise, you will fall into the stereotype of GUE who believes that everyone else is doing it wrong and if I'm not mistaken, aren't you guys trying to get rid of that image? Just because GUE says it is doing it right, doesn't make it so for everyone. That's pretty dogmatic.

There's a justification to the Dogma:
http://www.scubaboard.com/showpost.php?p=1847779&postcount=112

 

[Diesel298]

wow.
i didnt read this whole thread.
basically as long as theres a corse out there.
the c-card collectors will jump on it.
people need to take the class for the diving they will be doing.
just from a cost standpoint. diving He at 100 fsw is nuts

now allow me to don my flame retardant suit

 

[TheRedHead]

There's a justification to the Dogma:
http://www.scubaboard.com/showpost.php?p=1847779&postcount=112

Kev, Catherine told me you danced the salsa, but some people just don't dance.

 

[lamont]

I think its an excuse for people to say they dive trimix when they are not anywhere near a situation or diving proficiency level that would require it.

And I think you should come here and dive with me and say that to my face afterwards.

 

[Diesel298]

wow
hit a nerve there huh.
so explain what diving you do that requires He?
your profile is a little bare.
all i see is a pic with the look at me im GUE pose