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Old 08-15-2007, 10:25 PM   #1
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Default Help! Gas Leak between Tank and Regulator

Hi All,

I just got my kegging equipment and plan on kegging a batch of Apfelwein tomorrow. I was wondering if anyone could help me to fix a gas leak. I used soapy water at all possible points on the Keg, Regulator, and CO2 tank. The keg worked beautifully. I just replaced the O-rings on both posts and the cover, and used keg lube on them. The regulator barb was kind of obstructed by a hose clamp, so i couldn't see if the water was bubbling.

However, when i sprayed the solution on the CO2 tank nozzle/regulator connection, bubbles were blowing up in the soap. I looked and there isn't any rubber-type seal between the two. It looks like metal on metal contact. I used my wrench to tighten the seal as tightly as humanly possible but it didn't make a difference. The seal is poor. What do you all recommend that i do to fix this?

Thanks in advance for the help!

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Old 08-15-2007, 10:30 PM   #2
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Go immediately to the hardware store and get some teflon tape. It's cheap and absolutely necessary for a good tight seal.

Wrap the male threads of the connection in several tight layers of teflon tape and reconnect.

Oh...shut off the gas first.

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Old 08-15-2007, 10:33 PM   #3
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I agree with BierMuncher, however, there should be a gasket in this connection

http://www.midwestsupplies.com/produ...px?ProdID=4206

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Old 08-15-2007, 10:34 PM   #4
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You should have a nylon or fiber washer between the tank and regulator if you want to do it "right". Gas suppliers should carry them.

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Old 08-15-2007, 10:35 PM   #5
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yeah, any welding shop should have the nylon washers at least, usually 2 for $1.

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Old 08-15-2007, 10:50 PM   #6
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Wow. Thanks for the speedy replies. I'm off from work tomorrow, so i'll get the stuff i need before i keg. The welding shop is only 5 minutes away.

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Old 08-15-2007, 11:59 PM   #7
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My supplier gives me a washer with each exchange. I have one regulator with an o-ring and one without, but use washers on both.

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Old 08-16-2007, 01:26 AM   #8
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Mine had an Oring on the regulator flange. I found that a keg Oring is the right size. The connection does not seal via the threads so teflon tape is not a solution I would suggest.

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Old 08-16-2007, 03:21 AM   #9
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Quote:
Originally Posted by Bobby_M
The connection does not seal via the threads so teflon tape is not a solution I would suggest.
Nor would I suggest using a wrench to tighten the seal as tightly as humanly possible... That's a good way to break the fitting.
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Old 08-16-2007, 02:39 PM   #10
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I'd venture a guess that you could make your own washer out of almost anything. Grab the lid off a sour cream, ricotta cheese, etc container, cut a circle and put a small hole in the center. That's the solution I'd suggest for a flange that does not have a recess (gland) for an O-ring. If it does, just go to Lowes by the faucet repair section and find and O-ring that fits.

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