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Old 02-20-2008, 04:05 AM   #1
colinwollmann
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Default beer in gas lines

I'm fairly new to kegging so, bear with me here,got a little problem and can't seem to find an answer anywhere.
I'm getting some beer push back into my gas lines and I can't figure out why it's happening.I fill my cornies to about half an inch of space under the gas in tube.Then I simply hook up the gas to each keg at 12 psi for 3 weeks .After a couple of days I notice beer in gas lines.It really has me puzzled as to why this is happening.

help,thanks in advance,


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Old 02-20-2008, 07:54 PM   #2
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Try putting check valves in the gas lines.


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Old 02-20-2008, 08:45 PM   #4
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Sounds like your tank is lower than your keg...
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Old 02-20-2008, 08:55 PM   #5
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Quote:
Originally Posted by homebrewer_99
Sounds like your tank is lower than your keg...
I'm curious as to how this could potentially cause the issue that the OP is describing. I'm trying to work it out in my head, but I can't.
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Old 02-20-2008, 09:22 PM   #6
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Quote:
Originally Posted by ohiobrewtus
I'm curious as to how this could potentially cause the issue that the OP is describing. I'm trying to work it out in my head, but I can't.
Not sure myself...just thought about the process/effect we call syphoning...1 container has to be higher than the other.

With his keg pressurized and the tank turned off the higher pressured fuid would flow back to the keg...we're not there to witness his actions so I just let my mind ramble a bit...
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Old 02-20-2008, 10:05 PM   #7
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Quote:
Originally Posted by david_42
Try putting check valves in the gas lines.
I have check valves on my 4way manifold,so as you can see,I thought I was covered for back flow .

Yes I have a dual body reg.Also I keep my tank turned on all the time.
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Old 02-20-2008, 10:08 PM   #8
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I got nothin...
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Old 02-21-2008, 08:49 PM   #9
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We just got kegs and are having a similar problem. One of the kegs has a gas stone on a tube going down to the bottom. I just realized that it must be pushing back up through that tube.

I think we need check valves, especially if we're going to use the gas stone.

So we've definitely had beer in the gas lines. How do we know if it got into the regulator? If so, what do we do about it?
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Old 02-21-2008, 08:55 PM   #10
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The only thing I can think of is that your tank is being exposed to temperature swings and your keg is not. Either that or the temp swing is affecting your tank more than your keg because of the thermal mass of the liquid in the keg. Are they both in a temperature controlled environment? If the tank is outside the fridge, is there a possibility of a rogue sunbeam heating up the regulator and causing pressure fluctuations?


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