Going dry in Open Wter

[Jim Lapenta]

As DiveGirl said argon is a subjective item to alot of people. My instructor will dive nothing else when doing research dives in 34-38 degree water. I myself have only used it once even tho I've got an argon setup and 13 cuft of it setting right next to me. That was in 46 degree water. I had previously been in 52 with air in the suit and the 46 w/argon was a lot warmer. tho neither was truly uncomfortable. This was based on 3 dives each day in these temps w/air temps between 35 and 50-55 respectively. Both days in my os hd pro with both sets undergarments. As for the leg issue while a good fit is desired I would be a little leery of too tight in this area with undergarments on and no air in the suit. If you don't know what I mean put the suit on, zip er up, squat, vent while squatting, then stand up and see just how tight it can get till you get a little air in the legs. Might have you singing soprano or even falsetto.

 

[PerroneFord]

As for the leg issue while a good fit is desired I would be a little leery of too tight in this area with undergarments on and no air in the suit. If you don't know what I mean put the suit on, zip er up, squat, vent while squatting, then stand up and see just how tight it can get till you get a little air in the legs. Might have you singing soprano or even falsetto.

I did this test. The legs were ok even after I did the squeeze.

 

[do it easy]

I thought isobaric counter-diffusion was caused when switching from a helium mix to nitrox during ascent.

Don't take my word for it, but I believe it has to do with large swings of inert gases that you mention and being surrounded by a light gas such as helium. From my modest understanding, the helium will diffuse from your suit into your body and increase your helium beyond what the deco model is anticipating/calculating. I will further go out on a limb and say that this *might* be a cause of inner ear bends- vertigo, nausea.

Again, don't take my word for it- I learned how to dive on the internet!

 

[JeffG]

the helium will diffuse from your suit into your body

Cool trick

 

[JeffG]

I am generally 3-5 minutes from my planned exit, and doing NDL diving. If I *HAD* to get out, I could probably be out in under 4 minutes with the safety stop or just over a minute without. The springs have walkable exits at the perimiters.

Then I guess your covered. Dive whatever underwear floats your boat.

 

[do it easy]

Cool trick

I got to stop the carbo loading and internet diving! Everyone calibrate your BS meters to 100%