In addition, dredging sewer pipes is more complicated, and the pipes are smaller and deeper. If it's a kitchen pipe, it's still greasy. In addition, they are all equipped with traps, so it is difficult to dredge with ordinary dredgers, so a dredger is needed.
(If it is to dredge municipal pipelines, it will be more complicated. Because the municipal pipeline is buried underground, it needs to be dug out and dredged)
If you buy your own dredge, you only need about 120 yuan, and you can also dredge other sewers and blocked toilets for future trouble. (In addition, electric drills can also be used for other purposes.)
I just sold one myself, which is very convenient and good when dredging.