WILO jet aerators clean storm water retaining basins, keep the solids suspended and aerate the basin content.
WILO submersible motor pumps lift untreated storm water and sewage out of deep-seated sewers to the main collectors or sewage treatment plants at a higher level.
Grit collector pumps with mixer head remove heavy street sand from the bottom of the grit collector. Fresh sludge of the pretreatment basin is transported to the further sludge treatment by submersible motor pumps in wet sump installation.