Would you dive with 3 year old nitrox?

[industrious95]

I was going to do a bay dive this weekend. 15 ft. max. I have an AL80 in the garage with 34% nitrox, filled in August 2022. I "tasted" it and it smells and tastes fine. I know fills are relatively cheap, but I almost always dive with my steel 120's and don't want to get the AL80 hydro'd and VIP'd, which it would need if I got a fresh fill. I'm just gong to get rid of the tank after I use it. The AL80 was filled at a very reputable shop, so it's fair to assume that the original air quality was good. It's just 3 years old.

And I don't want to lug that heavy steel tank around for a 15 ft dive.

Any thoughts on 3 year old Nitrox?

 

[2TH DIVR]

Should be fine.
I just blended some nitrox with some O2 that was filled 28 yrs ago.
Came out fine.

 

[tursiops]

Analyze it before you use it.

 

[The Chairman]

Analyze it before you use it.

Please.

 

[lowwall]

Analyze. The concern is oxidation substantially reducing the available O2 in the tank, although I'm struggling to come up with how this could happen in an AL tank. Regardless, analyze and if it's still 34%, you are good to go.

 

[tursiops]

Analyze. The concern is oxidation substantially reducing the available O2 in the tank, although I'm struggling to come up with how this could happen in an AL tank. Regardless, analyze and if it's still 34%, you are good to go.

Also, the concern is a mislabeled tank.

 

[lizardland]

I have bailout bottles that I use for CCR diving that must have been filled 10 years ago.