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Old 02-21-2012, 02:44 PM   #1
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Default Co2 Leak in Keezer

So I just got most of the keezer build done, attached the two secondary regulators and a 3 way manifold. I've read many stories of people losing tanks over poorly connected lines. So Last night I brought the entire line system up to 30 psi and left it there, within 2 min I lost 1 psi. I tightened up some screws and reset the pressure, and then shutoff co2. Again, I lose a little psi. I tried spraying with some starsan around all connections and didn't see anything right away.

I decided to leave the system set over night and went in to look and its sitting at 18psi now. I don't know how much of that is loss vs just the keezer temperatures lowering the guages? It seems to me kind of strange that it would drop like it did at the rate and 8 hours later in the morning find it to be holding?

One thing I wondered if anyone has tried. What if you put some star san (very little amount) inside the tubing, turned on the pressure. Would the starsan come out of any possible cracks or spots that need refitting?


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Old 02-21-2012, 08:36 PM   #2
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The volume of gas will get more dense when chilled so the pressure in the tank looks to be less than what it actually is. If you take the tank out again the pressure will rise to the original position.


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Old 02-22-2012, 12:44 AM   #3
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So I found the source to be my two secondary regulators. I submerged and found no bubbles. I sprayed Down starsan on the rest and nothing showing. I have it to 30psi and will check back in an hour. However when I turn the co2 back on after 5min and the secondaries moved.
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Old 02-22-2012, 12:22 PM   #4
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I tightened all the lines, and only have the tank > primary regulator > line > secondary regulators (2 in line). I checked this morning and over night I lost 5 psi. I cannot find any leaks and if you think about the loss rate, its probably not enough to bubble anything. I'm wondering if I need to exchange my secondary regulator.

Anyone had this issue?
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Old 02-22-2012, 12:28 PM   #5
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Where did you buy the manifold from? My buddy has a three way manifold he got and it was notoriously bad. Spent a few hours with him going over all his connections and testing them and ultimately his manifold was messed up. But you may be luckier then him. I'd do another once over of all connections systematically to rule out everyone until you find the problem. With his you could hear a low hum when you put your ear up to them manifold. Also does your set up need a hard plastic washer or does it use an o ring at the tank connection?
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Old 02-22-2012, 12:30 PM   #6
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Also in the past I have inadvertently bumped my pressure gauge and not realized it which resulted in slow leaks.
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Old 02-22-2012, 12:45 PM   #7
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Well right now there is no manifold hooked up. I just have the primary on my tank directly hooked up to the two inline secondary regulators, and nothing hooked up to their lines. They have ball valve shutoffs on each of the secondary regulators and they are closed. I submerged that portion of the regulator to see what they did, and didn't see a single bubble. I also put my ear up to everything and nothing.

And I bought everything from Kegconnection.
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Old 02-22-2012, 08:29 PM   #8
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5 psi where? On the low or high pressure side? 5psi on the high side is nothing. If on the low side, some people have reported that their regulators wander from where they set them if they are cold.
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Primary: Apfelwein, Raspberry Lambic, Experimental Wheat cider, IPA
Secondary: Empty
Keg 1: Hefe
Keg 2: Irish Stout
Keg 3: Peach Kolsch
Keg 4: Empty
Bottled: Bourbon Vanilla Porter, Chocolate Stout
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Old 02-22-2012, 08:52 PM   #9
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It's on the low side. So on the secondaries. The secondaries are the only thing hooked up once the system pressure is set and I turn the cut off valve on the primary.

And I left them out of the keezer last night and lost 5 psi. Came back at lunch and it was down 3 more psi.

I'm going to take apart the secondary rig (not the secondary regulators themsleves), but all the pipe fittings and reapply the teflon tape and see what happens. Keg connection has been responsive and said they will replace it if I want, but I suggested to save shipping for me to see what this does.
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Old 02-22-2012, 11:22 PM   #10
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Are kegs hooked up? Do you completely counter clockwise turn yur gauge knobs out so there's no pressure and then turn until you get your desired pressure often times with full kegs I'll have to set the pressure then re adjust it alitalia while longer just because the internal pressure of the keg will push back. Post a pic of your set up if possible


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