Co2 leak

[jb1677]

Went to pour a beer last night and found that the co2 tank was empty. Only one force carb and 2/3 dispense on the fill. All had been well for weeks, then earlier this week I shut off the gas, purged the keg and put the gas real low to fill a few growlers. Once done I dialed back up to 10 and thought all was well.

I got the tank filled, hooked back up but found no signs of a leak. I submerged the keg and all was well, sprayed down the regulator and that was fine as well.

For now I have shut off the valve on my regulators output - I think by doing this I can isolate if the issue is past the valve in the hose or keg, or before the valve in the regulator. Is my thinking right here? My plan is to just flip the valve before I pour a beer, if hear the keg fill with co2 then I know it leaked. If I find the tank empty with the valve off then I know it's a regulator issue right?

 

[Yooper]

My bet is that it was the keg. I have a couple of kegs that "lose" their seal when I purge the keg and so I have to give it a bigger blast than 10 psi when I want it to seal. It's usually fine, as I don't often purge, but when I use my beergun I do. It's sort of a pain, since I'm always too stupid to mark which kegs those are when I'm thinking about it and then I forget which ones I meant to mark.

 

[jb1677]

that makes sense, I never hit the keg with High pressure after the purge/growler fill but I did after switching the tank. Hopefully that's all it was!

 

[carlisle_bob]

Hi

Are you using a Corny or a Sanke keg? If it's a Corny then yes indeed some do loose seal at low pressures. Its easy enough to check for. Fill the keg with water (no need to waste a lot of CO2) and put the lid on. Slop some soapy water around the lid seal. Crank up the pressure and watch the bubbles as it seals. Drop pressure back down again and see if they come back.

Bob