My work got a kegerator with tower and predictably all the beer comes out foamy.
One of the problems is that the line is too short. Is there a hygienic way to splice in a few extra feet of tubing into the existing lines? I don’t feel like putting a lot of energy into getting the kegerator to work right since it isn’t mine.
No. Quit. Any employer who would give you substandard beer on the job is not worth working for. 
Just replace the lines? Beer line is relatively inexpensive…and a splice is a bad result waiting to happen (leaks, contamination collection point, extra complication and cost…)
Seriously, here’s what you need. Also comes in 1/4". Plastic In-Line Flow Restrictor 3/16 [Flow-Restrictor-A56] - $2.75 : The Chi-Company, a home brewing company since 1996, New and used beverage equipment for Homebrewing, Home winemaking, Soda systems and used Pepsi vending equipment
Thanks, this is exactly what I need! I use epoxy mixers at home and was planning to install them at work, but I use 1/4" line while work has the normal 3/16" line.
Any idea how many I might use? The pressure is 10 psi, the lines look to be 5 ft long, and there is ~ a 2ft rise to the top of the tower. I’m thinking of trying half a flow restrictor.
No idea how to figure out how many you need other than trial and error. But you could call the Chi Company and see it they have any guidelines, if none are given in the product information; they’ve been helpful to me in the past on resolving a technical problem. There ought to be a simple equivalent of “so many inches of restrictor = so many feet of line.”
Does anyone use push-fit connectors with success?
I tried the Kegland set up for a spunding valve, but it is leaky - as to beer, rather than CO2, I would have some concern.
I must say that the inline restrictor you are looking to use seems interesting…but I just pour into pitchers and avoid the hassle of too much foam by filling glasses from the pitcher.
Edited to add link to Kegland site.
+1 
Kramerog,
How did this work out?
He probably quit his job and now cannot afford internet access.
Here is some information on how to balance a draft system. It has a table with line sizes vs. line lengths as well as other good information you can use for future reference.
Here is the whole Draught Quality Manual
http://www.draughtquality.org/wp-content/uploads/DBQM17.pdf
I still just wondered how he’d done with the little restrictor gadget. Seemed like doing it “the right way” wasn’t going to be an option.
BTW in addition to the information in the DBQM (my standard reference) I once found a great online calculator somewhere that also took into account the rate of flow desired – how many seconds to pour a pint – when determining line length (but unlike charts in DBQM it didn’t account for elevation above sea level. Guess you can’t have everything.) If I ever find the link again I’ll post it somewhere. But it seemed like Roger didn’t have the luxury.
replace the lines. Super easy to do. Drink beer first and it’ll be an enjoyable task. More work to splice line even if it were possible.