I got a keg of Guinness in for St. Pat's. I got it all hooked up and noticed I had a leak on the air side. I found the leak at the connection of the air line to the coupler. I tightened the nut and it didn't help. The U coupler has a weird check valve with metal insert.
I have this coupler...
http://www.micromatic.com/draft-keg-beer/taps-faucets-pid-G408.html
...and I set it up according to the chart under "replacement parts". I used the check valve, the metal insert, and the standard coupling washer. After finding the leak, I turned off my nitro and untapped. After disconnecting the air line, I took the metal insert out and re-tapped - no leak! I noticed the metal insert is not dented from me tightening, but I don't think it was like that til after I tightened it AFTER finding the leak.
Do I need this metal insert? If so, what am I doing wrong?
I have this coupler...
http://www.micromatic.com/draft-keg-beer/taps-faucets-pid-G408.html
...and I set it up according to the chart under "replacement parts". I used the check valve, the metal insert, and the standard coupling washer. After finding the leak, I turned off my nitro and untapped. After disconnecting the air line, I took the metal insert out and re-tapped - no leak! I noticed the metal insert is not dented from me tightening, but I don't think it was like that til after I tightened it AFTER finding the leak.
Do I need this metal insert? If so, what am I doing wrong?
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