1. Grease accumulation: In daily cooking, fatty substances such as edible oil will flow into the sewer with water. If these grease substances cannot be completely washed away by water, they will accumulate in sewers, and with the passage of time, these accumulated grease will gradually form lumps.
2. sundries such as vegetable leaves, bones and sand: sometimes during cooking, sundries such as vegetable leaves, bones and sand will accidentally fall into the sewer, and these sundries will interact with accumulated oil stains to form oil stains and lumps.
3. Improper use of sewers: In some families, people may often throw substances that are difficult to degrade, such as avocado kernels or oil, hair or other animal residues of livestock into sewers. These substances are not only easy to accumulate in sewers, but also cause great damage to pipelines and drainage systems.
4. Sewer design problem: In some bathroom designs, the slope of the sewer is not enough, which leads to the insufficient outflow of sewage. This phenomenon is also very common in the design of kitchen sewers, and this design problem will also lead to the accumulation of oil pollution, thus forming caking.
5. Not timely dredging: In the process of kitchen use, oil caking is an inevitable problem. If there is too much oil in the pipeline, it may lead to the backflow of sewage and bring possible health hazards to the living environment. Therefore, it is necessary to dredge sewers regularly. Once oil caking is found, it should be handled in time to avoid more serious consequences.