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Home Brew Forums > Home Brewing Beer > Bottling/Kegging > Gauge problems and CO2 leak
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Old 11-05-2012, 05:55 PM   #1
292beach
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Default Gauge problems and CO2 leak

I've been having some problems lately with a CO2 leak. I am also having problems with the gas gauges sticking. After a tap tap or flicking the gauge it will show the true measurement. Could the two problems be related?

Thanks,

JB

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Old 11-05-2012, 09:24 PM   #2
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NO, Kinda,,,, where is your leak? Did you use soap bubbles? What gauge is sticking? Did you valve off the system with the low pressure ajustment? I need more info,, chop chop!

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Old 11-06-2012, 02:05 AM   #3
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The gauge sticking is the CO2 for the soda keg. I soaped the tank and regulator area, I didn't find a leak. I changed all seals on the keg. I was trying to carbonate a batch, I set the CO2 @ 12psi and when I checked back 4 days later the CO2 was at 35psi in the keg and the CO2 tank was dropped by half(new tank).

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Old 11-06-2012, 02:13 AM   #4
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Sounds like you might need a new regulator. If you set your regulator to 12psi but it got up to 35psi that means your "regulator" is not "regulating" like it is supposed to. If it is busted, that could explain while the gauge on it is acting whacky.

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Old 11-06-2012, 03:26 AM   #5
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You know the screw/knob that you turn to give pressure to the keg. Turn that knob all the way out so no pressure is given to the keg and see if it's leaking on the tank side (with the tank off, the high pressure gauge should read 500psi and the low should read 0 and it should stay that way)..... It's leaking somewhere, you have to check all connections from the post of the keg to the regulator. It helps to turn the pressure up when leak checking. Make sure your soap bubbles are thick, not watery, it may only leak on one side of a fitting and it may take a few minutes to blow bubbles.

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Old 11-08-2012, 06:20 AM   #6
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Is 500 psi what they fill 5lb tanks too? I work in the medical field where 2000 psi is the norm. I was wondering why mine was only filled to 500. I'm new to kegging, sorry.

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Old 11-08-2012, 06:30 AM   #7
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500psi at 66-70F ish it will read that till the liquid is used up. you got a good fill

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Old 11-08-2012, 12:54 PM   #8
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Quote:
Originally Posted by Garyr2973 View Post
Is 500 psi what they fill 5lb tanks too? I work in the medical field where 2000 psi is the norm. I was wondering why mine was only filled to 500. I'm new to kegging, sorry.
Unless most other gases (oxygen, nitrogen) they fill CO2 cylinders by weight, since the CO2 is in liquid form when it's in a pressurized tank. Like with propane. The only way to know if you got a good fill is to weigh the tank! There should be a tare weight stamped on it.

As long as there's still liquid inside the tank, the pressure is just a function of temperature. It has no correlation to how full the tank is, if you got a "good fill" or if it's about to run out. When the pressure really starts dropping it means there's no more liquid CO2 in the tank and you're literally running on fumes. So it doesn't give you much warning.

500 PSI means your tank should be pretty cold, somewhere around 34-35 deg F.
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Old 11-08-2012, 05:59 PM   #9
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Here's an update. I was missing the bushing between the regulator and the tank. My new tanks are filled to just over 800psi.

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Old 11-08-2012, 06:22 PM   #10
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I'm glad it was an easy fix! Like I said though, they don't "fill it to 800psi," you need to weigh it to know how much is in there.

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