Using only breathable gas in your wings is critical, and should be
reason enough to save argon for the suit.

Why the second bladder?  One bladder for primary buoyancy, drysuit for
backup buoyancy.  In the ocean, jettisonable weight belt for tertiary
buoyancy.  If you lose the argon, the dive is over, but you can switch
the inflator from your wings to your suit if you need to add gas to
exit.  The second bladder and hose just present extra unnecessary
failure points.  

Also, the argon regulator is the only system with no redundant backup. 
Using it for your suit only means one hose, and minimum possibility of
failure.

-Sean

On Thu, 24 Jun 1999 18:21:53 -0700, jccalvin wrote:

>Frank, Sean:
>
>I hadn't thought about breathing off the wings.  If  I lost my Argon supply,
>I have a second bladder connected to my bottom mix.  I could inflate the
>wings and then switch the hose to my dry suit, if needed.  I was trying to
>save bottom mix but it's probably not worth it.
>
>regards,
>
>John.
>
>-----Original Message-----
>From: Frank Riffel <frank.riffel@en*.co*>
>To: Sean T. Stevenson <ststev@un*.co*>
>Cc: jccalvin <jccalvin@pa*.ne*>; Techdiver@aquanaut.com
><Techdiver@aquanaut.com>
>Date: Thursday, June 24, 1999 12:50 AM
>Subject: Re: Argon Bottle to Wings?
>
>
>>"Sean T. Stevenson" wrote:
>>
>>> Yes.  The wing inflator acts as a tertiary (manual addition) backup
>>> regulator.  Breathing argon is generally not a good idea.
>>>
>>> -Sean
>>>
>>> On Tue, 22 Jun 1999 16:01:01 -0700, jccalvin wrote:
>>>
>>> >Greetings:
>>> >
>>> >Is there any reason(s) not to connect the Argon bottle to your wings as
>well as to the dry suit?
>>> >
>>> >Thanks,
>>> >
>>> >John.
>>> >
>>
>>Not to forget that when the argon 1st fails (or the bottle is empty)
>>you have lost your entire buoyancy control.
>>
>>Regards, Frank
>>
>
>


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