$11 Soda Stream Bottle

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more_eggs
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Tue Nov 30, 2010 7:38 pm

Went to Woolworths this morning and picked up a sodastream bottle..
Im 90% sure the ladies there have no idea what they are doing, and the same at the Coles I visited the other day.. I think this because it costed me $11.70 for the bottle.. Im prrreetttyy sure thats just the refill price, and there is a "User Licence Certificate" on the bottle which is supposed to be pulled off and attached to your receipt when you purchase it.. On the certificate it says there is a user licence fee of $28.90.. So I thinks I got a bargain...
Anybody in Brisbane who wants cheap CO2 bottles, go to Buranda Woolworths or Fairfield Coles. Or try out your local, they might be silly too
:P

Iv attached a whole bunch of pics of the thread etc so you all can have a looksie and maybe someone will know what it is, and whether it will fit this:
http://cgi.ebay.com/UP-Co2-Plant-Aquari ... 652wt_1008

As you can see inside the thread, there is a pin valve, but it also looks like this pin valve can be screwed out.. If its possible, I could empty the bottle (I have no idea how yet, ideas?) screw out the pin valve, throw the reg on there, and fill up via the reg output, and adjust it to 0 output when its full. Then it can be disconnected, attached to the gun and adjusted again to the required output..

So for now I just need to figure out how to let out the CO2 without it resulting in the bottle punching a hole in the wall of my house.. Ideas on this would be great.
Pics:
Attachments
Verniers read ~21mm
Verniers read ~21mm
Thread width comparison, and valve screw
Thread width comparison, and valve screw
Thread compared to a 1/4'' npt or bpt, dont know the difference
Thread compared to a 1/4'' npt or bpt, dont know the difference
Size compared to my laptop
Size compared to my laptop
Licence Agreement
Licence Agreement
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ilovefire
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Tue Nov 30, 2010 7:49 pm

wow that is a score! i want to get one but im just afraid they will charge me the whole lot :? cant wait to see what you put it into
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more_eggs
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Tue Nov 30, 2010 7:57 pm

Just go down and ask the price man..
Chances are they will scan it and it will come up as $11.. if not just say you dont want it haha..
And if they ask what its for, just say you got an old sodastream machine without the cylinder :D
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MrCrowley
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Tue Nov 30, 2010 8:04 pm

I had the same luck when I got mine, they charged me refill price and not bottle price so it cost me like $8NZD. Is there a tiny screw or such on the threaded adapter? Unscrew that to bleed the bottle of all the CO2.

My bottle has 3/8" BSP male threads which screw in to the brass adapter, perhaps yours will be 3/8" female. I've found no use for the bottle really, the brass adapter is too stiff and annoying to be used for a hammer valve. While the bottle could handle quite a bit of pressure, it's heavy, small volume and has terrible flow so it doesn't serve much use as a chamber. Not for me anyway.
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ilovefire
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Tue Nov 30, 2010 8:25 pm

more_eggs wrote:Just go down and ask the price man..
Chances are they will scan it and it will come up as $11.. if not just say you dont want it haha..
And if they ask what its for, just say you got an old sodastream machine without the cylinder :D
hey yea thats a good idea, next time im at one of those stores ill take a look if i can find one
MrCrowley wrote: My bottle has 3/8" BSP male threads which screw in to the brass adapter, perhaps yours will be 3/8" female. I've found no use for the bottle really, the brass adapter is too stiff and annoying to be used for a hammer valve. While the bottle could handle quite a bit of pressure, it's heavy, small volume and has terrible flow so it doesn't serve much use as a chamber. Not for me anyway.
how about for a small caliber semi tank?
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more_eggs
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Tue Nov 30, 2010 8:31 pm

My bottle has 3/8" BSP male threads which screw in to the brass adapter, perhaps yours will be 3/8" female. I've found no use for the bottle really, the brass adapter is too stiff and annoying to be used for a hammer valve. While the bottle could handle quite a bit of pressure, it's heavy, small volume and has terrible flow so it doesn't serve much use as a chamber. Not for me anyway.
Well as long as it can put out pressures of 100-150psi I'll be happy..
At around 500psi I rekon I should get about 40 usable shots.. which makes it portable enough for what I want..

Oh and my tank doesnt have a bleed valve :(
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ilovefire
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Tue Nov 30, 2010 8:35 pm

more_eggs wrote:Well as long as it can put out pressures of 100-150psi I'll be happy..
At around 500psi I rekon I should get about 40 usable shots.. which makes it portable enough for what I want..
what size is your secondary chamber going to be and what are you planing on shooting with it?
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MrCrowley
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Tue Nov 30, 2010 8:38 pm

It'll hold 1000PSI easy, all you need is a means to pump up to that presssure. Are you making your own hammer valve for it? You wont be able to use the brass adapter unless you can do some machining. It just doesn't seem practical enough. A homemade one, I concluded, would be much easier.
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Tue Nov 30, 2010 8:44 pm

It'll hold 1000PSI easy, all you need is a means to pump up to that presssure. Are you making your own hammer valve for it? You wont be able to use the brass adapter unless you can do some machining. It just doesn't seem practical enough. A homemade one, I concluded, would be much easier.
Iv got a fridge compressor to take it up to a decent pressure..
Ok the setup I had planned was to just run a blowgun and barrel.. powered by the sodastream bottle with a brass adapter running to a regulator, which is regulating the output pressure to around 100psi.. Is that not a simple and feasible setup?
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Crna Legija
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Tue Nov 30, 2010 8:49 pm

if your safeway or coles has those scan your self checkouts then you should be able get it for the 11 bucks, whats the cylinder made out of.
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MrCrowley
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Tue Nov 30, 2010 8:50 pm

Yeah that would be fine, you'll have to buy a regulator that can handle the required pressure which might be a bit expensive, but it'll work.
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Tue Nov 30, 2010 8:59 pm

if your safeway or coles has those scan your self checkouts then you should be able get it for the 11 bucks, whats the cylinder made out of.
They only keep them behind the smokes counter man.. you need to request one..
you'll have to buy a regulator that can handle the required pressure which might be a bit expensive, but it'll work.
They have these badboys at the aquarium shop up the road http://cgi.ebay.com/UP-Co2-Plant-Aquari ... 652wt_1008

but they are like $50 up there.. Should be right for the pressure
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Technician1002
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Tue Nov 30, 2010 9:14 pm

To bleed off the CO2, using winter ski gloves and goggles to prevent frostbite, holding the bottle upright the pin can be pressed with a small Phillips screwdriver. The bottle will become cold as the liquid boils off so it well take a while and you may want to do it in several short sessions.

I do not recommend trying to remove the valve while under pressure as something could go wrong. Pushing the pin will provide a margin of safety as it will close when you release it.
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more_eggs
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Tue Nov 30, 2010 9:19 pm

To bleed off the CO2, using winter ski gloves and goggles to prevent frostbite, holding the bottle upright the pin can be pressed with a small Phillips screwdriver. The bottle will become cold as the liquid boils off so it well take a while and you may want to do it in several short sessions.

I do not recommend trying to remove the valve while under pressure as something could go wrong. Pushing the pin will provide a margin of safety as it will close when you release it.
Cheers for that.. I actually just held the bottle and pressed the pin on a pointy edge of my vice.. CO2 sprayed away from my body and all was well :)

Just ordered my adapter, coming from sydney so should be here sometime in the next week..
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MrCrowley
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Tue Nov 30, 2010 9:25 pm

Technician1002 wrote:To bleed off the CO2, using winter ski gloves and goggles to prevent frostbite, holding the bottle upright the pin can be pressed with a small Phillips screwdriver. The bottle will become cold as the liquid boils off so it well take a while and you may want to do it in several short sessions.

I do not recommend trying to remove the valve while under pressure as something could go wrong. Pushing the pin will provide a margin of safety as it will close when you release it.
Why not just use the bleed screw? It's there for a reason. It looks pretty similar to the one that was on my bottle. If you just gradually unthread the screw it will bleed a lot faster than depressing the pin. I originally tried depressing the pin (which is a right pain in the ass to begin with) until I did some searching and realised that there is a bleed screw on the side of the adapter.

Gloves are probably a good safety precaution though it is quite easy to control the flow of the venting safely.

edit:

Looks like the bleed screw is on the side after the writing shown in this picture:
Image
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