Method for operating a household dishwasher and household dishwasher for carrying out the method

A household dishwasher, comprising:

• at least one spray device;
• an outflow line;
• a fresh-water feedline having an inlet valve;
• a washing container for holding washing fluid, said washing container fluidically connected to said fresh-water feedline for filling said washing container;
• a variable speed circulating pump having a rotational speed sensor, a circulating suction side, and a circulating delivery side, said circulating pump fluidically connected to said washing container at said circulating suction side and fluidically connected to said at least one spray device at said circulating delivery side, said rotational speed sensor producing signals;
• an emptying pump having a emptying suction side and a emptying delivery side, said emptying pump fluidically connected at said emptying suction side to said washing container and to said outflow line at said emptying delivery side;
• a program control unit having control devices for controlling said circulating pump and said emptying pump, said program control unit connected to said inlet valve, said circulating pump, and said emptying pump;
• said program control unit programmed to at least one of selectively open and close said inlet valve and selectively activate and deactivate said emptying pump based on said signals during operation of said circulating pump;
• said program control unit programmed to determine at least one of a quantity of washing liquid to be pumped away and a quantity of washing liquid to be filled into said washing container based upon a rotational speed of said circulating pump;
• and
• said circulating pump and said emptying pump to be operated during a partial exchange of washing liquid.