Where'd you mount your CO2 tank?

nathanotis

nathanotis

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Jan 26, 2019
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I'm putting my DIY tank together next week. I bought THIS MOUNT, but compared to the POWERTANK bracket, it's pretty bulky (though it's less than half the price of the PowerTalk option.

The back of my TJ is completely open. No tool boxes or storage built in at this point. I have a powered sub under the passenger seat, but I may move that somewhere more secure (add-a-trunk?). I dunno.

Just looking for ideas. Nothing I found on the web has really done it for me, yet.
 
When I had CO2 it was mounted on the passenger side rear wall just in front of the tailgate using rubber holsters.
 
with a rear seat and tool box.
I can still drop the top with ease.

01F0FEEC-11E1-48D7-9A3A-462C4EA27429.jpeg
 
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Link to the DIY PowerTank build?

Can a scuba tank be used to build this? I have a few including a small 'pony tank' that could be enough for one or two fills.
 
someguysjeep said:
did you find a bottle closer to home?
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Man! I contacted ALL those people. Didn't get a GD response, so I bought a nice NEW one from amazon. Handle, valve and a nice blue anodized bottle. Screw the locals! BUY GLOBALLY!

(This does not reflect the actual opinions of this user, but rather a significant amount of frustration coming-out all at once.)
 
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MikekiM said:
Link to the DIY PowerTank build?

Can a scuba tank be used to build this? I have a few including a small 'pony tank' that could be enough for one or two fills.
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Just one of many...

https://wranglertjforum.com/threads/how-to-make-your-own-co2-air-system-for-under-200.4200/
Now, keep in mind most of these threads you'll find are older, and it's tough to find 2017 pricing in today's world... Suffice to say, mine did NOT cost under $200. If you have a tank already, you're off to a great start.

How big is a "Pony Tank"? 5lbs? Smaller?
 
MikekiM said:
Link to the DIY PowerTank build?

Can a scuba tank be used to build this? I have a few including a small 'pony tank' that could be enough for one or two fills.
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As a former very avid scuba diver with 3 tanks in my shed I wouldn't want to use one as a tire refiller. Too much pressure (1800-2000 psi) in them for me to want in the back of my TJ while offroading. CO2 is the way to go, there's only something like 150 psi in them.
 
nathanotis said:
Now, keep in mind most of these threads you'll find are older, and it's tough to find 2017 pricing in today's world... Suffice to say, mine did NOT cost under $200.
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I put my above CO2 system together for under $200 using all brand-new components including a new aluminum 10 lb. tank.
 
Jack_Stefan said:
Can we paint our co2 tanks? Or like polish the aluminum? is it safe?
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If you paint it, would need to make sure you don't cover up the certification date stamps. Not sure how that would work because you'd have to primer and then paint. Doesn't sound like a good idea.

If you must polish the tank, I'd want to do it while the tank is empty. Don't sand it or do anything that would compromise the thickness.
 
suicideking said:
If you paint it, would need to make sure you don't cover up the certification date stamps. Not sure how that would work because you'd have to primer and then paint. Doesn't sound like a good idea.
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The DOT stamps and the tanks they're stamped into are routinely painted and powder coated over without causing a problem reading them.
 
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Jerry Bransford said:
As a former very avid scuba diver with 3 tanks in my shed I wouldn't want to use one as a tire refiller. Too much pressure (1800-2000 psi) in them for me to want in the back of my TJ while offroading. CO2 is the way to go, there's only something like 150 psi in them.
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A CO2 tank is about 800 psi, Jerry. The pressure varies a bit with temperature, but it's always around this mark as long as there is liquid CO2 present in the tank. In round numbers, at about 70 degrees, the evaporation point of liquid CO2 is about 800 psi. When the tank is first filled, it is pressurized to 800 psi, and this causes the gas CO2 to condense into liquid CO2. Liquid CO2 evaporates when the gas pressure falls below 800 psi, so as you use the gas CO2 in the tank, the pressure drops below 800 psi, and more liquid CO2 evaporates until the gas pressure returns to 800. This is the reason the tank requires a regulator to drop the PSI to something usable.

This is the reason that you can tell how full your tank is simply by weighing it. When a 10 pound tank is full, it is 10 pounds heavier with liquid CO2 than the tank is empty.

I've always found it pretty fascinating how this works.

Here is my mount - I do have to remove it to use the tank - otherwise you are squirtin' liquid CO2...

IMG_10001 (12).JPG
 
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NashvilleTJ said:
A CO2 tank is about 800 psi, Jerry. The pressure varies a bit with temperature, but it's always around this mark as long as there is liquid CO2 present in the tank. In round numbers, at about 70 degrees, the evaporation point of liquid CO2 is about 800 psi.
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You're absolutely correct that was a brain-fart, I was thinking post-regulator.
 
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