I am new to kegging and just wondered, how long should I expect my homebrew to last once tapped from the keg?
It sounds like I shouldn't worry about tapping a keg a couple days before I go away for a few weeks. Thanks.
No, don't worry.
I'd advise you turn off the gas if you are leaving for a few weeks. That way if you have any minor leaks you won't return to an empty CO2 bottle.