Best Air Mix for Pony Bottle

[lowviz]

Fair enough, but my clock ticks on hydro, not the ******** money grabbing yearly VIP.

Edit:
I can't say Bull***t?

Ok, then.

 

[boulderjohn]

I just figured that maybe the benifit of breathing a higher mixture of oxygen could help reduce the nitrogen load during a quick ascent, if it ever came to that.

Why would you be doing a quick ascent? The purpose of a pony is to make sure that doesn't happen. Further, if you do a quick ascent from 60 feet, the mixture you are breathing is not going to make a bit of difference on your nitrogen loading.

 

[wetb4igetinthewater]

First, you must travel to Nepal in the spring, but you must do so after the most perilous phase of the avalanche danger no longer threatens your passage through the steepest clefts of the Alps, those that lead to the hidden mountain meadows of lore. Then and there, not too high, and not too low, but just where the eidelweiss will eventually bloom, and only in the two days (no more, no less) before they are in full flower, you must find the High Priest of Compressordom in the cave at the Northeast corner of the Meadow of Wisdom to fill your pony bottle with the rarefied Essence of the Alps, which will have the perfect balance among the scented essences of the meadow, O2, and N2. It will protect you against all evils. You will have to take a boat back, of course, because airport security won't let you take a full tank on the airplane. Unless, of course, you happen to be diving in Nepal.

Alternatively, you can simply put air in your pony, stay within the NDL, keep an eye on your SPG, and use the pony if an emergency develops.

One of these is a lot simpler than the other...which is a long way of saying "don't overthink this." Get it rigged comfortably and make sure you can deploy it reliably. Extra points if you can quickly hand it off to someone else, which could be important someday if they are on the edge of panic.

(It's been a long week. Sometimes my sense of humor gets the better of me. Hope you're not offended!)

God my geography sucks. I had no idea that the Alps were near Nepal!

 

[wetb4igetinthewater]

In all seriousness, have you done the computations for the required ascent rates for different pony bottle sizes based on different gas consumption rates?

 

[grf88]

God my geography sucks. I had no idea that the Alps were near Nepal!

Tectonic drift may be faster than you realized.

 

[wetb4igetinthewater]

Tectonic drift may be faster than you realized.

Great. Now my geology sucks too!

 

[WorkNPlayScuba]

Why would you be dong a quick ascent? The purpose of a pony is to make sure that doesn't happen. Further, if you do a quick ascent from 60 feet, the mixture you are breathing is not going to make a bit of difference on your nitrogen loading.

I would hope to never do a quick ascent. But I guess your right, if I did, the higher EAN would not make a difference during off gasing. I’d hope that I’d be at least able to make the safety stop given a SHTF scenario.

 

[lowviz]

@wetb4igetinthewater, It is easy. The Matterhorn is part of Africa.

What goes around, comes around.

 

[grf88]

Great. Now my geology sucks too!

Don't worry, we have entered the age of alternative facts.

 

[grf88]

It is easy, the Matterhorn is part of Africa.

That's only logical, many of the animals in Africa have horns.