Ive got a kenwood American style fridge/freezer and want to run CO2 into it for my kegs (currently only got 1 keg and keep the gas in the fridge, but won't have room for 2 kegs and co2 bottle). Ideally I want to run it in from the side of the fridge but am very qorried about hitting a cooling line. Is there a definitive way to tall if the fridge is only cooled on the back wall?