Causes of odor backflow of floor drain

The main reasons for the odor backflow of floor drain are as follows:

1. Improper pipeline design

If the pipeline where the floor drain is located is not properly designed, that is, the direction of the pipeline is incorrect, it may cause a large amount of sediment to accumulate in a certain part of the pipeline, which will hinder the water flow and cause the floor drain to emit an unpleasant smell. At this time, if the water pressure is high, it will cause water accumulation at the floor drain, and the odor emitted by the scale in the blocked sewage pipe will flood into the room.

2. The waterproof layer is not ready yet.

The main function of waterproofing is to prevent water from infiltrating into the basement from the ground, and to avoid the humidity and water invasion in the basement. However, some low-end buildings may omit waterproof work during construction, or fail to do a good job in construction, which makes the leakage and flooding of the ground downstairs inevitable. At this time, the function of the floor drain will be reversed, and the floor drain will become a channel for sewage to flow back to the room, resulting in odor.

3. The drainage system is not smooth

Poor drainage system is also one of the reasons for floor drain and odor reflux. For example, kitchens, bathrooms and other pipelines are far away from floor drains, and usually need a large number of through pipes for connection. If these joints are not equipped with exhaust devices to prevent odor from flowing backwards, it will also bring problems to the use of floor drains.

4. Long-term neglect of cleaning and maintenance

Irregular floor drain cleaning will lead to dirt accumulation, which will lead to floor drain blockage and odor. For example, grease and food residue will often accumulate in the kitchen floor drain, and if it is not cleaned in time, it will produce odor. In addition, if there is often accumulated water in the floor drain, it will also lead to sewage backflow and odor.

To sum up, there are many reasons for the odor backflow of floor drain. To avoid this phenomenon, it is necessary to strengthen control from many aspects, such as pipeline design, waterproof layer construction, drainage system installation, regular cleaning of floor drain and so on.