[PSUBS-MAILIST] onboard O2

[Alan via Personal_Submersibles]

Brian,
I didn't mention that because there would be an overpressure in the
hull, & I thought the better of the two evils was to come up in a controlled
manner to let the pressure escape more slowly in the last few feet.
Alan

Sent from my iPad

> On 9/05/2017, at 4:19 AM, Brian via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
>  
> Or blow main ballast and come up with that way. 
>  
>  
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