As part of a kitchen remodel an electrical duplex outlet was added below the sink. During the home inspection I found that the polarity on this outlet is reversed. This means that what is meant to be the "hot" wire is wired as "neutral". This can cause grounding problems with the garbage disposal or anything else that is plugged into the socket. It was recommended that the owner have an electrician correct the situation to prevent potential problems. There should also be a cover plate on the box. The red device plugged into the socket is my tester used to insure proper polarity and grounding in electrical outlets.