If you don't have check valves on your gas lines you can get beer to back up into the gas lines. I have check valves in all my gas lines and highly recommend them.
No, you would need ti carb to proper volume and serve at that pressure for it to not start losing pressure. Once you start serving your keg pressure will drop and will only be replaced by the psi the regulator is set to. So eventually your pressure will balance to whatever the regulator is set for. I.E. if you set to 30psi then drop regulator to 10psi for serving once the pressure in your keg drops below 30 it will continue to drop till it gets below 10 then will be replenished by the regulator to 10PSI.
if I'm wrong someone will correct me in sure.
Enter your email address to join: