I bought a coil of flexible copper pipe at HD, the longest length they had was 20 feet, same at Kent. I coiled the pipe around a paint can as I had seen in a YT video. Looking at the coiled pipe in the 15ga brewpot and it doesn't look like nearly enough pipe. My question is, is this enough pipe to cool the beer sufficiently? I know it would be ideal to have 50 feet coiled but since I can't find that much, will this get me by?