Does anyone know the INTERNAL dimensions of a 5 gallon ball-lock Cornelius keg? I want to accurately measure the volume of beer once filled i.e height, liquid level and diameter will give me the volume per an online calculator. Thanks for your time.
Measure 5 gallons of water then pour it in the keg and mark your keg. You could pour in and mark one gallon or even a half gallon at a time and mark it.