The following pumps are used for...
The following pumps are used for water treatment and water desalination: 
- Submersible pumps in discharge tubes
- Submersible pumps
- Submersible motor pumps
- Close-coupled pumps
- Volute casing pumps
- In-line pumps
- Pressure booster pumps
- High pressure pumps
- Multistage pumps
- Centrifugal pumps
- Process pumps.
Water treatment

If the water quality is changed different types of pumps are...