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[PSUBS-MAILIST] Life Support



Hello folks,

 

It has been a long time since my last post but I still have questions!

 

Is it correct to think that in an enclosed space, like your pressure hull you will suffer from the negative effects of excess CO2 before you suffer from a lack of O2? What I am getting at is, could you upgrade a simple sub with no life support by adding just a scrubber to extend your usable bottom time or would you only gain a little bit of extra time before the O2 would need replenishing as well.

 

What sort of equipment is used by those of you who do replenish the O2? It is sufficient to have an O2 tank, conten gauge, regulator (and gauge?), and a flow meter (with a separate O2 sensor and meter). Or does the equipment need to be more sophisticated than this.

 

What do you do about “oxygen cleaning” Do you have to just concentrate on the O2 supply kit or all of the equipment within the sub?

 

How many of you provide yourselves with CO2, O2, and internal pressure gauges to monitor the environment but do not fit additional life support.

 

Thanks in advanced guys,

 

Harry