TDI Deco Procedures.

[SailNaked]

I am considering taking TDI Deco procedures by itself. I do not intend to dive deeper than 150 at the moment however I would like to be able to use my doubles in some of the shallow wrecks near me. (Oriskany, Texas Clipper). I understand that adv nitrox is usually part of the package however my question is, if I am fine with decoing on 36-40% what would I be missing if I only took the one course?

 

[UCFKnightDiver]

Why wouldnt you want accelerated o2 deco? I suppose you could deco out on 36% or w/e, but it would just be a needlessly longer dive.

 

[ucfdiver]

Deco'ing on 40% is nickel rocketing at it's finest. Are you really willing to more than double the amount of deco time you have to save a few bucks?

 

[Michael_Lambert]

As said you are pretty much going to lose out on the opportunity to deco out on higher percentage of O2.

 

[rjack321]

I am considering taking TDI Deco procedures by itself. I do not intend to dive deeper than 150 at the moment however I would like to be able to use my doubles in some of the shallow wrecks near me. (Oriskany, Texas Clipper). I understand that adv nitrox is usually part of the package however my question is, if I am fine with decoing on 36-40% what would I be missing if I only took the one course?

You are missing helium.
You are missing any real gas gradient (Air on the bottom up to 36EAN for deco is lousy).
You are missing actually understanding enough about technical diving to chose the best options/plan for a given set of circumstances.
Might be hard to find like minded buddies willing to restrict themselves to your (limited and maybe not so prudent) dive choices.

 

[Michael_Lambert]

Helium?? In the advanced Nitrox course?

 

[rjack321]

Helium?? In the advanced Nitrox course?

Ummm yeah why not actually get useful training on something like 25/25 or 21/35 with O2 or EAN50 for deco depending on the dive.

Adv. nitrox alone doesn't even get the ability to switch gases, nevermind the lame 21% to 36% balony.

 

[Michael_Lambert]

Ummm yeah why not actually get useful training on something like 25/25 or 21/35 with O2 or EAN50 for deco depending on the dive.

Adv. nitrox alone doesn't even get the ability to switch gases, nevermind the lame 21% to 36% balony.

Don't get me wrong i am all about the Best mix for the dive; be it bottom gas or deco gas.

However the OP was saying they have no issues doing deco on upto 40% and wanted to know if there was any other benefit to the Adv Nitrox course which there really is not.

Now if they where going to be going down the road more and doing Long range dives or have the need to get into a Entry level trimix then sure the adv nitrox is needed for it.

 

[rjack321]

My only point was...
There are vastly better ways to dive to 110-150 than on air and <40% for deco. The only reason the OP "doesn't have a problem" with such a plan is because he doesn't have any training yet and doesn't (by his own questions) know what he's missing.

My answer is that deco proceedures by itself probebly shouldn't even be taught (by a reputable instructor) and that even adding Adv. Nitrox to deco proceedures is still missing alot.

I would find an instructor for NAUI, GUE or UTD course that gets you entry level helium, 50%, or 02 and then you have a whole lot more information and tools to make rationale dive plans with.

 

[Michael_Lambert]

I am not one to argue the Deep air debate.. being a student of GUE myself.. However i do feel their is some benefit to the two courses taken together, while planing dives within Recreational depths.