In dredging operations, sediments, sludge, or other debris are removed from water bodies like rivers, lakes, and harbors using a specialized pump. In hydraulic dredging, which involves excavating and removing material from underwater or below-water surfaces, it is essential.

The typical operation of a dredge pump is as follows:

1. Suction
2. Impeller Action
3. Slurry Transportation
4. Discharge