Home Brew Forums > Home Brewing Beer > Bottling/Kegging > when to fill C02 tank?
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Old 01-24-2013, 03:43 AM   #1
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Default when to fill C02 tank?

I am sure that this has been answered numerous times but my search didn't find anything.
I have 2 kegs carbing and my c02 Gauge is about 600, I know that cooling the tank resists in a pressure drop. I am having a party next week and want to know if that amount of gas will last with the 2 kegs or should I have it topped off before?

Thanks
Ian


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Old 01-24-2013, 03:46 AM   #2
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If its in the red, replace it. Like the gauge says


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Old 01-24-2013, 03:56 AM   #3
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It's hard to tell exactly how much is in a tank, especially if the tank its inside your kegerator. The gauge is pretty worthless if that's the case. I always have a backup tank just in case, but you should get 7-10 cornys out of a 5lb tank.
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Old 01-24-2013, 03:59 AM   #4
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When I bought the tank and keg it was about half full. What's the psi on a full 5 pound tank?
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Old 01-24-2013, 04:04 AM   #5
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Quote:
Originally Posted by Leadpencil View Post
When I bought the tank and keg it was about half full. What's the psi on a full 5 pound tank?
depends on ambient temp. if it's 75 degrees, it can be 800+. if it's 35, it could be 600
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Old 01-24-2013, 04:06 AM   #6
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Take the tank and weigh it. Total weight minus the tare weight is the number of pounds of co2 left. The tare weight is stamped on the tank.
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Old 01-24-2013, 04:10 AM   #7
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Thanks for the info, I will pull the tank out tomorrow and check it out.
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Old 01-24-2013, 04:33 AM   #8
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The temperature in my garage is 28 and my 20# tank is showing around 400psi. It's in the red. I weighed it and I have 9.5# of co2 left. So the tank is about half full. What I do is put a sticker on the side of my tank with the tare weight and full weight on it. I even put the full weight with regulator and hose attached. At any time I can put it on the scale without removing the regulator and get an accurate reading. I use one of the hanging type scales that I use to check propane, and bulk grain measurements also.
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Old 01-25-2013, 03:07 AM   #9
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I pulled the tank and weighed it. The tare weight is 9-14 pounds. My scale said 13.5 pounds at 37 degrees.
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Old 01-25-2013, 03:14 AM   #10
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9-14 what the


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