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Old 01-10-2012, 04:40 PM   #1
mdboulier
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Default A better DIY Carbonator Cap

I tried to make a DIY carbonator cap. I used the push in rubber car tire valve stems. They stink. I soaked them in star san to try to remove the odor with no success. I was thinking about using these little guys instead...any thoughts? (Also McMaster part no.7757K43)

My thoughts were to drill through the 2 liter cap and then use JB Weld on the outside to seal the valve to the cap airtight. Should work for $3-4 each. Fill bottles using 1/4ID CO2 line, shake, and disconnect.

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Old 01-10-2012, 05:15 PM   #2
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I use these for many of my filler thingies:



Valve, Air Tank Filler - Pneumatic Modular FRL Accessories - Pneumatic System Components - 1X361 : Grainger Industrial Supply

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Old 01-11-2012, 09:24 PM   #3
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No worries about brass reacting?

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Old 01-11-2012, 10:23 PM   #4
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I went to an auto supply place and picked up metal tire stems. replaced the rubber with food safe o-rings.

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Old 01-13-2012, 10:27 PM   #5
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Quote:
Originally Posted by mdboulier View Post
No worries about brass reacting?
Not really in contact with anything to react to. Have one in a growler lid when I need to add sparkle.
Also used some connectors to mount one on corny inlet ball lock. When the cornies are otherwise unoccupied, I charge with compressed air for backwoods shower setup and have a mister connection I use at music festivals.
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Old 01-23-2013, 01:47 AM   #6
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Quote:
Originally Posted by MrNatural View Post
Not really in contact with anything to react to. Have one in a growler lid when I need to add sparkle.
Also used some connectors to mount one on corny inlet ball lock. When the cornies are otherwise unoccupied, I charge with compressed air for backwoods shower setup and have a mister connection I use at music festivals.
Can you post pictures?
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Old 01-23-2013, 05:19 AM   #7
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2 liter pop bottle, drill a hole in the lid, install valve, pressurize with 30psi, win.
I use these, and have a 30 psi Co2 tire fill hose right at my fridge:

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Old 01-23-2013, 05:24 AM   #8
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I guess I'm behind the curve here. What are you doing with these? Pop bottle mini kegs?

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Old 01-23-2013, 12:14 PM   #9
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Replacing this:




With this:



For a cheaper way to carbonate

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Old 01-23-2013, 05:06 PM   #10
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What connection/connector for CO2 do you use on the tire fittings?

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