Foaming issues with kegging

[BeerHolic]

I have not been kegging for long, started end of November last year.
Recently got my second keg. (Corny kegs)

So I used the formula.
Beer line length = (keg Pressure -tap positive pressure - (height/2))/ resistance

height = tap height above keg
resistance = resistance of beer line. ( tap one foot above keg.)
Using 3/16 vinyl = 3 psi per foot resistance
I have a gas manifold which has a 2 psi pressure loss.

Beer line length = (12 - 1 - 1/2)/3 = 3.5 feet = 1.067 meters
Using 1.1 meter beer line length.

Regulator set to 14 psi (2psi loss on manifold).

When pouring I get 25% beer and 75% foam.
I have increased my bear line length to 1.4 meters still the same.
As a test after pouring first beer, immediately poured a second 40% beer and 60% foam.
I have placed my temperature probe in a sealed jar of water. Still I get the same results.

I am at a loss why, any suggestions / advice welcome.

 

[day_trippr]

You went off the rails using that old saw "3 psi per foot" metric. It was never correct.
Use this calculator...
https://www.mikesoltys.com/2012/09/17/determining-proper-hose-length-for-your-kegerator/...or simply use one foot of 3/16" ID line per psi...

Cheers!

 

[camonick]

Regulator set to 14 psi (2psi loss on manifold).

You need about 4.5+ meters with that pressure.

 

[day_trippr]

And just so we're not missing any clues: before you pour, check the beer line all the way back to the keg and see if there are significant gas pockets. Check it again after the pour if it's another foamy one. There could be more at play than simply the beer line length...

Cheers!