equation for c02/line length/ beer temp

[mcr122]

Is there an equation to use so I can figure out the optimal amount of gas, length of draft line for the type and temperature at which i serve my beer? I cannot seem to get it right. I am ending up with either not enough gas to keep air from forming in the lines overnight and having too much pressure and therefor a pour that is too fast and forms too much foam. any help...

 

[GilaMinumBeer]

Direct Draw Balancing

Cheers.

 

[williec30]

or this one... i must say however, the calculation told me i needed 3 feet of beer tubing for my setup. not sure there is anyone here that would suggest 3 feet.

Line Balancing

 

[david_42]

I am ending up with either not enough gas to keep air from forming in the lines

That's just CO2 coming out of solution because your taps are warmer than the beer. Not air & not a problem.