Which Deco Gas Do You Use Most Often

[Michael Guerrero]

Please only post if you actually conduct deco dives. Not what you think you'd use if you did deco dives, or what you heard someone else uses (even if they're a really cool person and a great diver), or whatever.

If you're a rebreather diver, sorry.

 

[Wookie]

I like to get off of helium as soon as possible, so I go to 32% at 130 feet, then go to 50% at 70 feet.

 

[Dive-aholic]

Most often - 100%. But only because most of my dives are in the 80-100' depth range breathing 30%.

 

[j2s]

Most often - 100%. But only because most of my dives are in the 80-100' depth range breathing 30%.

Ditto....

 

[tomfcrist]

50/50 for shallowish deco dives that involve more than 20 min of deco.

100 and 50/50 for deeper or longer dives.

I usually do the math and decide if the run time difference is worth using a richer gas, but when diving 150' or shallower 50/50 only leaves me with 1-6 minutes of extra deco time, and I only need 1 bottle. Sometimes I will use 80%, but that is usually when I'm traveling and once again don't want to tote multiple bottles.

 

[Centrals]

None of the above.
50 and 100.

 

[waterpirate]

Another " none of the above ". I do 32/20 and 70 % for the dep stuff, and 70% when only one gas makes sense.
Eric

 

[scububa]

I am 50 and 100
but I do some dives where I only use 100, so I checked 100.

 

[tkdgodess]

Depends on the dive, shore dives i use 100% because its an al 40... And im lazy, and we have big hills. Boats i use whatever fits the profile (i have permanent tanks for o2 ( the 40) 50% (al 80) and another al 80 o2 clean for whatever i might need). Sometimes i plan the dive based on what tank is full.

 

[rjack321]

You might as well ask "what is you typical deco dive?"

I didn't answer because I don't have a "typical" I use O2, EAN50 and trimix deco gases as the dive dictates