According to the requirements of the traditional geomantic custom of living in China, the direction of the toilet should not be the same as that of the residence. For example, the door of a house faces south, so when people sit on the toilet, if they face south, it is a taboo that the toilet and the house face in the same direction, which may lead to health problems for family members. The solution is to adjust the direction of the toilet to deviate from or opposite to the direction of the house.