2 tap Cornelius Kegerator

Step 4 Find the Cooling Line.

The reason we're going to be going right down the center of the top is because there's a cooling line running from one side of the right to left sides of the fridge along the top. This line is inside the foam insulation and if we just drill our hole to pass the beer lines anywhere we feel like we are at a high risk of hitting the line and making the fridge useless.

To easily find the line sprinkle (or spray if you've got a spritz bottle of some sort) water onto the exposed metal top of the fridge, plug it in and turn it on full blast. You'll see a section of the fridge will dry fast than the rest, and amazingly it should be a single line running parallel to the back of the fridge about 8 inches away from the edge. I took a photo of this, but it didn't come out very well. Try it and you'll see what I mean though. Worst case scenario, you know why not to drill at the rear of the fridge, and you can draw a line 9 inches (give yourself some room please) from the back of the fridge and make sure your drilled holes don't cross this line.