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Home Brew Forums > Home Brewing Beer > Bottling/Kegging > beer hose length and CO2 pressure question
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Old 02-02-2013, 11:21 PM   #1
Fredderick
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Default beer hose length and CO2 pressure question

I am trying to figure a way for my beer to stay carbonated properly while in my Keg... I currently force carb at 12 psi at 35 degrees and then I have to switch to 8 or 9 psi in order to get a proper pour from my tap.

I am fairly certain this lower serving pressure will result in lower carb levels in the beer.

If I make my beer lines longer, would that allow me to crank up the psi and still get a good pour that isn't all foam?

Thanks for your help!

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Old 02-02-2013, 11:24 PM   #2
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Yes. Basically, if you balance your lines for your carb pressure, that becomes your serving pressure.

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Old 02-02-2013, 11:55 PM   #3
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Is there a formula or rule of thumb of how much beer lune to use in order to serve at X pressure

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Old 02-03-2013, 01:06 AM   #4
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I think the consensus is to use [at least] 10 feet of 3/16" ID beer line per faucet for typical (~2.5 volume) brews served below 40°F.

Higher carbed beers (like hefenweizens) will require higher pressure, and thus longer lines. And if you serve at higher temperatures than most (say above 40°F) that will require higher pressure to maintain carbonation levels, and hence longer lines as well...

Cheers!

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Old 02-03-2013, 01:08 AM   #5
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There's an online tool that where you can plug in your values and it tells you the resulting PSI. I'll see if I can find it and post it here.

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Old 02-03-2013, 01:10 AM   #6
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I wouldn't bother. None of the calculators I've seen will result in satisfactory performance in a home-kegging scenario...

Cheers!

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Old 02-03-2013, 01:12 AM   #7
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Ya, I was going to say, try experimenting a bit. It'll be pretty specific to your hose diameter and wall diameter.

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Old 02-03-2013, 01:35 AM   #8
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Thanks everyone... The 10ft recommendation is a good starting point... I only have 4' right now hooked up... No wonder I have to dial it down to 8 psi to serve

I guess it's a trial and error deal

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