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Old 19 March 2008, 19:01   #1
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dive cylinders

afternoon,

can anyone point me in the direction of very small dive cylenders? dont know what they are called but remember seeing them on a james bond movie and sure they are "real" rather than a Q invention!

seem to recall they have a mouth piece intergrated.

does this make sense??
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Old 19 March 2008, 19:15   #2
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late afternoon

spare air is your answer

http://www.spareair.com/
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Old 19 March 2008, 21:18   #3
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Spare air is probably right. Might I ask your use for them? Are you a certified diver? Those things can kill you if you don't know what you're doing with them...

Depending on your application, there are a number of small cylinders available that require a seperate regulator, but that hold more gas than these things...
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Old 19 March 2008, 21:33   #4
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This little cylinder is making me feel funny....

Quote:
Originally Posted by Stoo View Post
Spare air is probably right. Might I ask your use for them? Are you a certified diver? Those things can kill you if you don't know what you're doing with them...

Depending on your application, there are a number of small cylinders available that require a seperate regulator, but that hold more gas than these things...
I have seen people use "small" cylinders before but it usually makes them laugh, cause they have nitrous oxide in them. Course they weren't diving or anywhere near dive equipment generally... Unless....Well, we won't get into that.
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Old 20 March 2008, 03:11   #5
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Originally Posted by Stoo View Post
Spare air is probably right. Might I ask your use for them? Are you a certified diver? Those things can kill you if you don't know what you're doing with them...

Depending on your application, there are a number of small cylinders available that require a seperate regulator, but that hold more gas than these things...
I second that.
also the spareair regulator is not so reliable and can't be serviced in a shop.
For service it has to return to the factory.
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Old 20 March 2008, 06:53   #6
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I have seen people use "small" cylinders before but it usually makes them laugh, cause they have nitrous oxide in them. Course they weren't diving or anywhere near dive equipment generally... Unless....Well, we won't get into that.
Ahhhh Ha Ha Ha Ha
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Old 20 March 2008, 08:11   #7
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Zippy,

I have one. It was serviced by Kent diving (kentdiving.com). It works very well - but I can't think of a practical use for one other than a means of escape FROM water. I certainly wouldn't get IN with one! David Hasselhoff seems to get a lot more air out of his than I ever managed You get about 25 breaths or so just below the surface, much less at depth. If the air runs out while the unit is immersed, it will take in water and need a service. Not the greatest of one's worries at this point....
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Old 20 March 2008, 09:15   #8
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David Hasselhoff seems to get a lot more air out of his than I ever managed
Perhaps that bulge in his Speedo was actually a pony bottle! It's all clear now!

As you point out, as a means to bail, "anything" is better than nothing, and as someone who dives alone most of the time, I am a huge fan of redundancy.. but these little "toys" really don't offer much of a buffer.

I guess until we know Zippy's intended use, we shouldn't "judge"... maybe he wants to use it in his bathtub...

And Pat, in my earlier years, we had great fun with "whippets"... not the dogs, but the wee cartridges used to fire up commercial whip cream gizmos! I can remember partys where everyone had the colouring of Papa Smurf. Well not me of course... but everyone else. Often wondered what I might... err, those other guys... might have accomplished had they not killed half their brain cells in der yoots...

Then there was the snorting of Tequilla, but that's another story altogether...
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Old 20 March 2008, 11:41   #9
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I second that.
also the spareair regulator is not so reliable and can't be serviced in a shop.
For service it has to return to the factory.
Not true. They are shop-serviceable. Not easy to overhaul, but my local dive shop has kits and will work on them.

That said, I find they're pretty useless. Sort of like having a spare tire that will get you 200 yds. I personally feel they create a false sense of security, and are, in the long run, generally more dangerous than nothing. Just my opinion, though.


Stoo; you Canadians seem to get a bit stir crazy at times...


jky
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Old 20 March 2008, 13:16   #10
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Aren't you better off with a traditional "pony bottle"? What's do you want it for?
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