# Beer line length for 4912

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#### drunkatuw

##### Well-Known Member
When I bought a dual tower for my 4912 conversion, it came with 5' of hose connected to each faucet. It seems like lately I'm getting almost a half a glass of foam whenever I pull a pint. I keep the pressure between 10 and 12 psi and the temp around 38 degrees.

Do most people that use a dual tower on a 4912 use the typical 5' of tube that comes with the tower or do most people remove the tube and put on a longer one. I used the equations from this page, http://hbd.org/clubs/franklin/public_html/docs/balance.html, and it seems like 5' would be more than enough.

L= (P-(H*.5)-1)/R
L= (12-(3*.5)-1)/2.7
L= 3.5'

My only other guess would be that the beer line that came with the faucet did not have a resistance of 2.7. I bought some hose before I bought the tower because I wasn't sure if the tower would come with beer lines, so I guess I could give that a shot.

#### Lil' Sparky

##### Cowboys EAC
That's what I've got and don't have that problem. Where's the kegorator located at? Is the tower and faucet getting hot? I think this can contribute to a first foamy pour. How's the pour on a second glass immediately after?

OP
D

#### drunkatuw

##### Well-Known Member
The second glass is better, but still foamy. The kegerator is in the basement where it's roughly 60 degrees, so it's not extremely warm.

#### Lil' Sparky

##### Cowboys EAC
Makes me wonder if your regulator isn't accurate. Try turning it down 1-2 lbs and see if that helps while keeping your beer carbonated enough. Otherwise, swapping out for some longer lines should do the trick.

#### RoaringBrewer

##### Well-Known Member
I tried with the same 5' of line that came with my tower on my 4912 as well... A lot of foam was the result.

Quickly switched it out for... trying to recall here... 8' of line on each tap I believe. I might have even used 10'... Either way. Little-no foam. Perfect pour.

I've served beers between 10psi (bitter) and 15psi (wit) at 40F without issue. The 10psi bitter will pour a bit slower obviously, but its literally 8 seconds to fill a glass compared to the 6 it takes a 12psi beer or 4 it takes a 15psi beer. No biggy...

#### jfish63

##### Well-Known Member
I remember reading a minimum of 6 ft for beer line. Drop the pressure to 6 or 8 until you get longer lines.

#### Atl300zx

##### Well-Known Member
i use 12' of line for 12 psi serving pressure, but mine is a keezer.