[PSUBS-MAILIST] onboard O2

[Alan via Personal_Submersibles]

As per my calculations Brian, that would be over the limit if it emptied out,
as far as G.L. rules on partial pressure of O2 is concerned.
You wouldn't have any O2 toxicity problems just an elevated risk of fire.
BTW I am just quoting the rules not advocating them. If it did happen that 
the contents of your O2 tank emptied in to your submarine, I would be 
inclined to go to the surface driving my thrusters at a low speed to avoid 
heating the electrics.
Alan
 

Sent from my iPad

> On 8/05/2017, at 2:34 PM, Brian Hughes via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> I carry a small O2 tank (20 cubic feet) internally, connected directly to a pediatric regulator. The outflow is piped to the inlet of my scrubber (it's an axial), via the same tubing used for O2 masks, mixing the gas in the process as it's drawn through with the sub's air.
> 
> . It's how I did it with my DIY rebreathers and I feel safer being able to directly control my O2 and not have to worry about organic contaminants in any lines coming in from the outside. But that's just me AND I don't plan on spending 10 hours at max depth.
> 
> Brian
> 
> 
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