I just purchased a new 30 qt brew kettle, and had the store install a spigot. They say that they water tested the spigot but during the first brew there was some leakage. The strange part is that the leakage began at the beginning of the brew, and once the liquid inside raised in temperature the leak ceased. So upon a closer inspection and a little reseach I noticed that the rubber O-ring is on the inside of the brew kettle. From some of the schematics I have seen online, the rubber O-ring is located on the outside of the kettle. Can anyone provide some clarity on proper placement of the rubber O-ring for brew kettle spigots?