[PSUBS-MAILIST] Hi pressure air

[Alec Smyth via Personal_Submersibles]

Yes, it needs a valve because its going through your pressure hull. But it
can be a check valve, no need to be manually operated.

Alec

On Fri, Aug 21, 2015 at 11:28 PM, Brian Cox via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hi All,
>                 Question,  does outward bound high pressure (ie to the
> ballast tank) need to have a valve on it before it goes out through the
> hull?  It wouldn't seem so, but I was just wondering if there is some ABS
> rule concerning that.
>
> Brian
>
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