To prevent unintentional gas loss.  The backup hangs around the neck
with the diaphragm down, and is further exascerbated by flow from heavy
current or from scootering.

-Sean


On Fri, 11 Feb 2000 11:20:53 +0300, BCE mail wrote:

>Sean,
>
>You wrote "The backup regulator should be a proper non-pneumatically
>balanced second stage". Could you explain why the backup second stage
>should be non-pneumatically balanced?
>
>Thanks
>
>Oleg
>
>


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