A booster pump is a machine which will increase the pressure of a fluid.
A chopper pump is a centrifugal pump which is equipped with a cutting system to facilitate chopping/maceration of solids that are present in the pumped liquid.
Maceration, in sewage treatment, the use of a machine that reduces solids to small pieces in order to deal with rags and other solid waste.
Pumping stations are facilities including pumps and equipment for pumping fluids from one place to another.
Sewage treatment is the process of removing contaminants from wastewater, primarily from household sewage.
A submersible pump (or sub pump, electric submersible pump (ESP)) is a device which has a hermetically sealed motor close-coupled to the pump body.