| CPC A47L 15/4221 (2013.01) [A47L 15/0021 (2013.01); A47L 2401/06 (2013.01)] | 16 Claims | 

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               1. A household dishwasher, comprising: 
            a dishwasher cavity for receiving an item to be washed; 
                a hydraulic circuit configured to circulate fresh water and/or wash liquor in the dishwasher cavity; 
                a pump device configured to apply fresh water and/or wash liquor to the hydraulic circuit; and 
                a closure manufactured from a water-soluble material, said closure configured to disconnect part of the hydraulic circuit from the pump device during a one-time calibration process of the household dishwasher and dissolving in the fresh water and/or the wash liquor during and/or after completion of the calibration process. 
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