PUMP DEVICE FOR A WATER-CONDUCTING DOMESTIC APPLIANCE METHOD FOR OPERATING SUCH A PUMP DEVICE AND WATER-CONDUCTING DOMESTIC APPLIANCE

摘要

A pump device for a water-conducting domestic appliance such as a washing machine or a dish washer comprises: a pump chamber provided with at least two entrances; and a plurality of actuators provided on or in the pump chamber for performing liquid-pumping operation in at least one direction. At least one sensor is provided on or in the pump chamber to determine a composition and a feature of liquid in the pump chamber. A storage chamber is connected to the entrance of the pump chamber and contains an additive or an analyte for the liquid.