Ok, but what do you put the 80/20 in??  ;-)  <JK>

"Lais, Bill" wrote:
> 
> This has to be a troll, but just in case it's not:
> 
> You're probably going to be breathing the 50/50 deeper than the O2, and
> hence you'll consume more gas.  I think we learned about this concept in OW1
> if I'm not mistaken.   ;-)
> 
> Bill
> 
>                 -----Original Message-----
>                 From:   Dixieboca@ao*.co* [SMTP:Dixieboca@ao*.co*]
>                 Sent:   Wednesday, March 17, 1999 10:51 AM
>                 To:     kirvine@sa*.ne*
>                 Cc:     cavers@cavers.com
>                 Subject:        Re: o2 for ocean deco
> 
>                 >A 40 of 50/50 and a 30 of oxygen makes ocean deco diving a
> lot more fun
>                 >and much more practical.
> 
>                 Why?
> 
>                 It seems to me that you should reverse those and use 2000
> psi of O2 in a 40
>                 and your 50/50 in a 30.
> 
>                 My logic behind this is the volume of gas you would carry in
> both bottles
>                 would be approximately the same:  The 40 filled to 2000
> would have 26.66 cu ft
>                 of Oxygen and the 30 filled to 3000 would have 30 cu ft of
> 50/50.
> 
>                 Please explain to me why I would want to do it reversed and
> carry only 20 cu
>                 ft of O2 and 40 cu ft of 50/50.
> 
>                 thanks in advance,
> 
>                 Ted
> 
>

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