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I just got my coffin style keezer all set up. I did the calculations to get a "balanced" system at a normal 12 PSI of pressure. This gave me 7 feet of 1/4" hose. Apparently my math was a little wrong, or something, because it seems like it still comes out a bit fast and can cause a bit of foaming.

From what I can tell, there are the following solutions

  1. Run longer line
  2. run a "choker" line near the shank
  3. Find an inline restrictor

I really don't want to run longer lines, one that actually would be expensive since I have 4 taps, and it is already getting a little cluttered with the length of hosing I have

I could do a choker line, I just need to find the right fittings. I would have to ask if I ran a choker line right before it gets to my tailpiece (which is for 1/4" tubing, but I think with some heat I could make it fit snug) would that cause foaming as it would go from 1/4" down to 3/16 then back up technically for the tail piece which is 1/4?

Lastly, it would be nice to be able to just add an in-line resistor of some sort. Has anyone had any luck with these? Has anyone found them anywhere?

Thanks for your help!

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I would suggest that inserting anything that reduces the line bore inline would cause the beer to foam from the sudden acceleration of the beer with the smaller diameter. –  mdma Apr 10 '13 at 19:56
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2 Answers 2

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I think you are fighting the 1/4" line. It is going to flow the beer way too fast at that psi and distance to ever get a good pour. In my experience, trying to get a system exactly balanced on line length and elevation never seems to result in a good pour.

In my kegerator, I run all taps with 10ft of 3/16 line. Most of my beers are run around 10psi and they pour great. I have had a Hefeweizen on tap at about 18psi and it poured fast, but it wasn't overly foamy.

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I might give the 3/16 line a try, but since there is an elevation, the calculation only gives me 2.5 feet or so to bring me down to 0 PSI at the faucet. 3 feet of 3/16 isn't something that is too expensive to give a shot. –  Justin Rassier Apr 11 '13 at 20:55
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Beer hose is normally 3/16" for short runs. IIRC, tailpieces are also 3/16", but if yours is 1/4" that's not a problem, since it's just before the faucet. Making the hose wider is usually ok - the beer simply moves slower which is good to stop it foaming too much in the glass.

I wouldn't take any of those solutions. I'd swap out all the 1/4" for 3/16". 1/4" line has a restriction of 0.85 psi per foot, while 3/16" has a restriction of 3 psi per foot, so you will reduce the length required considerably.

See also

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That is potentially an option as well, but as it is a coffin style keezer (has the faucets up on top) with the vertical lift and the 3/16" hose, I may be getting close to the length that I have available. I suppose I can do the calculation again and see, but I was hoping a nice easy in-line resistor would do the trick. –  Justin Rassier Apr 10 '13 at 18:38
    
I'm not sure I understand you. With the 3/16" line, you will need less than half the length of hose compared to 1/4". –  mdma Apr 10 '13 at 19:17
    
You are correct, but the distance from my keg to my tail piece (taking into consideration the vertical lift) is greater than what my calculations show I need. If I put the minimum distance between my kegs and the tail piece, I don't think 12 PSI would be enough to push beer out of the faucet. –  Justin Rassier Apr 10 '13 at 20:33
    
What's the distance from your kegs to the faucet, and the elevation? –  mdma Apr 10 '13 at 21:45
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You'll definitely need longer hose - in my experience that these calculations result in a pour that is too vigorous coming out the tap, and IIRC I didn't take 3 psi for the shank/faucet, but added extra hose length for that, and it was still too short. –  mdma Apr 18 '13 at 16:38
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