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Brian, The CO2 is removed from the air via cryogenic distillation.
We speak of CO2 accounting for 1% of the makeup of air while in
reality it makes up much less; argon makes up closer to 1%. R/Jay Respectfully, Jay K. Jeffries Andros Is., It is the mark of an educated mind to be able to entertain a thought
without accepting it. - Aristotle -----Original Message----- And what about our planet ! Extra CO2 will needlessly add more
greenhouse gases to the atmosphere. Brian ----- Original Message ----- From: "Ian Roxborough" <irox@ix.netcom.com> To: < Sent: Saturday, February 24, 2007 22:21 Subject: Re: [PSUBS-MAILIST] on-board air. > > I was wondering... > > If the CO2 tank is in the human occupied space, do you have a plan > to deal with a faulty valve or some form of CO2 leak? > > Seems a little dangerous since CO2 isn't good for humans. > > Cheers, > Ian. > > > On Sat, 24 Feb 2007 20:52:52 EST > ShellyDalg@aol.com wrote: > > > Hi Jay. Both good points. My thought was that the volume per
cubic foot of > > available tank space for air versus CO2 might help in a small
sub when the > > tanks are inside and taking up valuable space. > > A standard scuba tank at 80 cubic feet of air takes up quite
a bit of space. > > Now, let me ramble for a minute. > > 2 people on board, diving at 150 feet, want to blow ballast
dry maybe 3 > > times each dive. ( one to come up, one to try but fail to
come up, and one more > > to come up after you fix whatever it was that failed.)
Hopefully you get it > > right by then.But if it still won't come up........ > > Now you need two tanks for escape air, and enough air with a
scrubber to > > stay stuck for three days while you hope someone can get to
you. > > That makes about 6 scuba tanks. > > What if you could replace all the ballast blow with one
liquid tank, ( 3 > > blows, or 3 scuba tanks.) > > With a small sub, it's getting real crowded in there with all
those tanks. > > I don't think anyone carries that much air in a small sub,
but more is > > better than less! > > Just wondering.Frank D. > >
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at > > http://www.aol.com. > > > > > >
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