Originally Posted by BigKahuna
4.5PSI @ 68F seems a LOT low.
I keep my Keezer at 10PSI, and 33F ( I know I know, we keep pop on tap too), and I have really good luck with that. I do hit a keg with 25 - 30psi initially and take it to the 60F Basement, then Burp it and hook it to live 10PSI when it goes in the freezer. I try to have it cold for a week before I Hook up the liquid Line.
From Pale Ale - Classic Beer Style Series - Terry Foster - second edition.
"English draught bitter should be served at 1.0 - 1.5 volumes (of CO2), preferably towards the lower end of this range."
"Note that none of these tables shows as low as one volume of CO2, which requires less than 5 lbs per square inch of applied pressure"
"It might take days to come to equilibrium with the applied pressure"
4.0 PSI at 68F = 0.96 volumes of CO2
5.0 PSI at 68F = 1.02 volumes of CO2
For me, this is perfect, but I grew up appreciating what you would consider to be warm flat beer.