The treatment method of slow sewage in the bathroom: 1. Log dredging method: First, insert a log with a diameter close to the drainage outlet into the water pipe, and put a certain amount of water in the pool, and quickly twitch the log up and down without interruption. Under the action of suction and pressure, the dirt in the pipe will be washed away. 2. The floor drain is an important interface connecting the drainage pipe system with the indoor floor. As an important part of the drainage system in the house, its performance directly affects the indoor air quality, which is very important for controlling the odor in the bathroom. The reason for the odor of the floor drain may be that the water seal height of the floor drain is not high enough, and the water in the trap dries up quickly, so that the odor in the drain pipe overflows. At this time, a return bend can be added to the floor drain, or a floor drain of the same specification can be replaced. If no one is at home for a long time, it is best to seal the floor drain with a cover.