1. Check the appearance
When choosing a drain pipe first, look at the appearance. A good drain pipe has a uniform color, a smooth inner wall and a shiny surface. On the contrary, if the color of the drain pipe is white or yellow, brittle and hard, and the inner wall is rough, it is mostly a low-quality drain pipe.
2. Check toughness
Secondly, when choosing a drain pipe, look at its toughness. A good drainage pipe has a high degree of obstruction and strong toughness. Even if it is rolled by a car, it will only become flat and will not be broken. On the other hand, if the drain pipe is easily broken, most of it is caused by adding a large amount of calcium powder to the material in order to save costs during processing.
3. Corrosion resistance
Then, when choosing a drainage pipe, look at its corrosion resistance. A good drainage pipe is not only not affected by soil corrosion, but also has good corrosion resistance to acids and alkalis. In addition, it is not susceptible to fungi and bacteria. The normal lifespan is as high as 30-long-term durability according to standards.
4. Extensibility
Finally, when choosing a drain pipe, it depends on its ductility. Just try to break the drain pipe. If it is not easily broken, it means that it is qualified. In addition, when choosing a drain pipe, pay attention to its thickness and whether it meets the national standard.