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Re: [PSUBS-MAILIST] CO2 Scrubber

To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
From: "Warrend Greenway" <dub@linuxmail.org>
Date: Wed, 08 Jan 2003 02:52:17 +0800
Content-Disposition: inline
The life support part is part that I find most facinating. Look
I appreciate the warning, and you are correct that every possible
precaution should be taken. Here's the trick: If I used an off-the-
shelf system, I would still make one of my own so that I understood
it in every detail. By the way, you struck a chord with the hull
crush depth. That is something that bothers me. I plan to go seriously
to the overkill side on every part of the hull. Then I will lower the
hull minus myself to maximum design depth, then never operate deeper then
one third of that. There is no way in you know where that I am going to
do anything to shorten my submariner career!

Warren.

> An engine hoist does not kill!
> A defective CO2 scrubber without the right sofnolime will kill you.
> A miscalculated hull will crush you at depth without warning.
> You can bet on it. however if you considere sub making as a game that s your
> life. Long time ago i learnt while student engineer that engineers dont
> play, they may have fun but they dont play. Play and you will go broke,
> loner or dead.
> I would say that like in aeronautic what makes a good subman is an old
> subman.
> There are thousands of other items that are left to design and build that
> are not "life support" why dont you focus on those, you will go under the
> water sooner and safe.
> Herve
> 
> ----- Original Message -----
> From: "Warrend Greenway" <dub@linuxmail.org>
> To: <personal_submersibles@psubs.org>
> Sent: Monday, January 06, 2003 5:57 PM
> Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
> 
> 
> > Because that's what I do every day of my life. I build things I really
> > could buy, and push technology. I come from a family of engineers. We
> don't
> > sit on our cheeks! We DO things. I needed an engine hoist...So my dad and
> > myself designed the best darn hoist you have ever seen and built it! We
> > could have actually bought a good enough hoist for less, but we wanted to
> > build it. That is the real reason I am interested in PSUBS. I will build
> my
> > hull, my instruments, my air recycling system, and my power/speed
> controller
> > circuitry. Why? Because that's the game! I will carefully test my system
> before
> > I use it, and if I can't make it function reliably then I won't use it. I
> might
> > even use the sofnolime blend just for fun, but I will still build my own
> waste-
> > heat rechargeable system to use it in. Besides it's mostly just fun to
> consider
> > the alternatives to standard systems. But I also see what you are saying.
> Building
> > everything is not for everyone. You may not have the time or interest.
> That's
> > fine.
> >
> > Warren.
> >
> > > Hi,
> > > I dont understand why you dont want to use the sofnolime specially
> designed
> > > for life support systems, do you want to make your own just to save $50
> and
> > > risk your life.
> > > Amazing to see that every year divers die with market rebreathers, yet
> guys
> > > outhere are ready to dive in carboard sub and milk cartons rebreathers
> and
> > > try anything for the freedom of doing it.
> > > A "regular" sub is ALREADY difficult and tricky to put together, why
> even
> > > considere nuclear homemade sub, flying subs, propane subs, peroxyde
> subs,
> > > and other out of your mind submersible, did anyone tried telekinesis
> sub,
> > > warp sub,  or time travel sub, is there anyone left here who wants to
> build
> > > just a realistic sub?
> > > Herve
> > > ----- Original Message -----
> > > From: "Warrend Greenway" <dub@linuxmail.org>
> > > To: <personal_submersibles@psubs.org>
> > > Sent: Monday, January 06, 2003 1:03 PM
> > > Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
> > >
> > >
> > > > I understand why divers wouldn't want to, but I still do. I don't
> > > > see what the problem is. You simply have to properly granulate and
> > > > hydrate the calcium hydroxide. Furthermore, you can get the product
> > > > from chemical suppliers properly packaged and pure for less. I
> wouldn't
> > > > need of want the coloring agent. I would be using CO2 analyzers on
> inlet
> > > > and exhaust to decide when to replace. Like I said though, the medium
> is
> > > > rechargeable. I don't think you would want to if you were talking
> short
> > > > range weekend diver...
> > > >
> > > > Warren.
> > > >
> > > > > At 09:52 AM 1/6/2003 +0800, Warrend Greenway wrote:
> > > > > >The basic scrubber will consist of a canister with two screens
> > > > >
> > > > > >calcium hydroxide is standard slaked or hydrated lime, available at
> any
> > > > > hardware
> > > > > >store for a few bucks a fifty pound sack.
> > > > >
> > > > > I've been on the "rebreather" listserv for a couple years since this
> is
> > > > > another interest of mine. You might enjoy this website--
> > > > > http://www.atlimp.com/pend2.htm, although he is more serious with
> other
> > > > > projects - http://www.atlimp.com/home.htm
> > > > > other "famous" homemades -
> > > > > http://www.metacut.com/rebreathers/TP2000/Default.htm (this author
> died
> > > > > last month when the helicopter he was piloting crashed into NY
> > > waterfront
> > > > > at night- another dangerous activity),
> > > > > http://home1.gte.net/doctrbob/CCO2.htm,
> > > > > http://www.hrc.wmin.ac.uk:8080/xml/kiss/home,
> > > > > http://insel.heim.at/malediven/350052/english.htm
> > > > >
> > > > > I don't think any serious divers would use hardware store hydrated
> lime.
> > > > > The CO2 absorption depends on the exposure to the surface area of
> the
> > > > > sodalime "granules" and anyone who bets their life on such only
> > > purchases
> > > > > prepared "sodalime" from suppliers that have a consistant and
> reliable
> > > > > product. The sodalime is discarded and replaced in the scrubber for
> each
> > > > > dive. source - http://www.metacut.com/rebreathers//sofnolime.htm -
> this
> > > one
> > > > > changes color as product is used up.
> > > > >
> > > > > William Alford
> > > > > walford@dbtech.net
> > > > >
> > > > > Tout comprendre c'est tout pardonner
> > > >
> > > > --
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> 

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