Swimming bath cleaning device

A cleaning device, comprising:

• a housing with a base arranged adjacent to a surface of a liquid container containing a liquid to be cleaned, the housing defining at least one intake aperture arranged on the base of the housing and at least one outlet aperture, the housing having an inner chamber with a contamination-exposed part and a clean part, the inner chamber being at least partially enclosed by the housing and having a bottom surface;
• a removable cover with an underside arranged over the inner chamber;
• a filter arranged in the inner chamber for separating the contamination-exposed part and the clean part of the inner housing, the filter extending between and forming a seal with the bottom surface of the inner chamber and the underside of the cover;
• and
• a pump, an electric motor, and a shaft arranged in the inner chamber, the shaft actively connecting the pump to the electric motor, and the pump pumping the liquid to be cleaned into the contamination-exposed part of the inner chamber, through the filter, through the clean part of the inner chamber and through the at least one outlet aperture.