TDI ADV Nitrox & Deco Procedures.

[PaulSmithTek]

CORRECTION SDI above is supposed to be TDI my mistake.

Hey everyone. I went to a class that talks about tech diving on Saturday, and the classes offered. I have signed up for the Advanced Nitrox and Decompression Procedures. Question Is I am wanting to do the re breather thing, so I was wondering if the investment is worth it. Just looking for every ones .2 cents.

Thanks,

 

[Steve R]

Hey everyone. I went to a class that talks about tech diving on Saturday, and the classes offered. I have signed up for the Advanced Deco and Decompression Procedures. Question Is I am wanting to do the re breather thing, so I was wondering if the investment is worth it. Just looking for everyones .2 cents.

Thanks,

First of all this is all TDI course material, not SDI. It doesn't really matter as it's all the same people, but just so you know.

Depending on which RB's you want to train with, you may be required to do Advanced Nitrox anyway (CCR vs. SCR).

 

[Robert Thompson]

Yes you have to take advanced nitrox before you can take a TDI closed circuit class. If you know that rebreathers are the way for you then I would recommend not investing in anymore open circuit gear and just going to Closed Circuit. Once you take Advanced Nitrox you either go open circuit or closed circuit. Once you start on one path you don't get credit for the other. IE if your OC trimix you don't get to do a CCR crossover class, you have to take trimix all over for CCR. So if you know thats the route you want to go, do it now. Oh and if you are planning on eventually doing alot of trimix diving in the future, the CCR will save you enough money in helium to pay for itself. Whenever I do OC trimix now I get a little tear in my eye as I look up and watch all those dollars floating to the surface.

 

[Rick Inman]

CORRECTION SDI above is supposed to be TDI my mistake.

Fixed!

 

[The Chad]

What Robert said.

 

[Robert Thompson]

Hey I see you are in Salt Lake. Do you happen to know Jake Montgomery? He is an SSi instructor up there. A real good guy too.

 

[PaulSmithTek]

Hey I see you are in Salt Lake. Do you happen to know Jake Montgomery? He is an SSi instructor up there. A real good guy too.

Sorry Robert I don't. I only deal with one dive shop anymore (SDI/TDI) unless it is just for air refills.

 

[gkndivebum]

[...] Oh and if you are planning on eventually doing alot of trimix diving in the future, the CCR will save you enough money in helium to pay for itself. Whenever I do OC trimix now I get a little tear in my eye as I look up and watch all those dollars floating to the surface.

Indeed - gone are the days of spending $150+ to fill a set of doubles with mix for a
deep dive (He is $1.00 per cubic foot here on my rock in the middle of the Pacific).
Diving CCR lets me use trimix diluent any time I want - no narcosis, and I just feel
better after the dive, regardless of the profile. My old double 95s are now a set of
bank bottles to fill the diluent cylinders on my and my wife's PRISMs

Case in point - yesterday's putz-around dive looking for the rumored sunken sugar
barge at Mahukona (we found what's left of it - not much) we each used less than
2 cubic feet of diluent. Let's see - that's, oh, $2 total. Cheaper than Starbucks.

 

[Meng_Tze]

..... Oh and if you are planning on eventually doing alot of trimix diving in the future, the CCR will save you enough money in helium to pay for itself. Whenever I do OC trimix now I get a little tear in my eye as I look up and watch all those dollars floating to the surface.

The cost of He should not be the reason to go CCR. You'll be disappointed if that is the main focus. CCR diving is inherently expensive. Take an average CCR of what: $8000,-, plus all bits and bobs, then you have training at say $2000. consumables, services etc, etc. I figure you spend about 12K at the best before you dive a ccr on mix.

OC mix training and equipment will be around $3000 if at all that high. So ball park figure 9K difference. At $120/OC fill you are looking at a minimum of 75 mix dives before a RB breaks even...that is a lot.

You have to figure out how many times you will need mix for a dive and if the risk is worth it.


(caveat this with the fact that I am just getting into CCR and do not have all the numbers worked out yet).

 

[The Chad]

Man I would have to disagree with you. There are alot of benefits to CCR, more bottom time, carry less gas, no bubbles. Yeah CCR's are expensive but so is top of the line OC gear.
If you can spend 3k on gear and training, I'd like to know where you shop and what book your reading.