A washing device comprising at least one inner chamber in which operations such as washing/rinsing/drying of items are performed, at least one door which provides access into the inner chamber, at least one mains inlet line through which water is taken in from at least one water source and a washer drawer comprising at least one body in which cleaning agents are stored; at least one water line through which water from a source, which can be mains, is supplied into the body; at least one first compartment which is provided in the body and in which a first liquid cleaning agent is stored before a washing operation; at least one second compartment which is provided in the body and in which a second liquid cleaning agent used during a rinsing operation of the items being washed is stored, characterized in that the washer drawer further comprises: • at least one mixing line, at least one end of which is connected to the water line; • at least one first pump which is disposed on the body and provides the supply of the first cleaning agent from the first compartment into the mixing line; • at least one second pump which is disposed on the body and provides the supply of the second cleaning agent from the second compartment into said mixing line; • at least one first line situated between the first pump and the mixing line; and • at least one second line situated between the second pump and the mixing line; • at least one mixing compartment which is provided in the body and in which the first cleaning agent or the second cleaning agent mixed with water from the source is supplied from at least one other end of said mixing line, passed through it and then supplied into the inner chamber; • at least one sensor for measuring parameters like the amount, weight, amount of dirt etc. of items placed into the inner chamber; and at least one control element adjusting the amount of water and/or of the cleaning agent to be used in washing and/or rinsing operation(s) to be performed according to measured values, and having connection to the first pump and/or the second pump and/or to at least one main pump providing the supply of water into the body. • at least one mixing line, at least one end of which is connected to the water line; • at least one first pump which is disposed on the body and provides the supply of the first cleaning agent from the first compartment into the mixing line; • at least one second pump which is disposed on the body and provides the supply of the second cleaning agent from the second compartment into said mixing line; • at least one first line situated between the first pump and the mixing line; and • at least one second line situated between the second pump and the mixing line; • at least one mixing compartment which is provided in the body and in which the first cleaning agent or the second cleaning agent mixed with water from the source is supplied from at least one other end of said mixing line, passed through it and then supplied into the inner chamber; • at least one sensor for measuring parameters like the amount, weight, amount of dirt etc. of items placed into the inner chamber; and at least one control element adjusting the amount of water and/or of the cleaning agent to be used in washing and/or rinsing operation(s) to be performed according to measured values, and having connection to the first pump and/or the second pump and/or to at least one main pump providing the supply of water into the body.