A liquid dispenser apparatus (100, 200), comprising a base structure (105; 205) having: a liquid inlet which is designed and intended to be connected to a liquid source and to receive a liquid from the liquid source, a gas inlet (104; 204) which is designed and intended to be connected to a gas source (106; 206) and configured to receive gas from the gas source (106; 206), a dispensing outlet (108; 208) which is designed and intended to be connected to a liquid dispensing unit, in particular a faucet, a storage connecting portion (112; 212) which is designed and intended to be connected to a liquid storage (114, 116; 214; 216), and a passage arrangement (120; 220) which is configured to put at least two of the liquid inlet, the gas inlet (104; 204), the dispensing outlet (108; 208) and the storage connecting portion (112; 212) into fluid communication with each other, wherein the liquid dispenser apparatus (100; 200) further comprises: a valve arrangement (130; 230) which is seated in the base structure (105; 205) and configured to control a fluid passage of the liquid inlet and/or the gas inlet and/or the dispensing outlet and/or the storage connecting portion, and a control unit having at least one signal input which is configured to be connected to a user interface, and at least one signal output which is configured to be connected to the valve arrangement (130; 230) such that the valve arrangement (130; 230) is controlled by the at least one signal output, characterised in that the base structure (105; 205) of the liquid dispenser apparatus is formed by a molded structure or by a machined structure. a base structure (105; 205) having: a liquid inlet which is designed and intended to be connected to a liquid source and to receive a liquid from the liquid source, a gas inlet (104; 204) which is designed and intended to be connected to a gas source (106; 206) and configured to receive gas from the gas source (106; 206), a dispensing outlet (108; 208) which is designed and intended to be connected to a liquid dispensing unit, in particular a faucet, a storage connecting portion (112; 212) which is designed and intended to be connected to a liquid storage (114, 116; 214; 216), and a passage arrangement (120; 220) which is configured to put at least two of the liquid inlet, the gas inlet (104; 204), the dispensing outlet (108; 208) and the storage connecting portion (112; 212) into fluid communication with each other, a liquid inlet which is designed and intended to be connected to a liquid source and to receive a liquid from the liquid source, a gas inlet (104; 204) which is designed and intended to be connected to a gas source (106; 206) and configured to receive gas from the gas source (106; 206), a dispensing outlet (108; 208) which is designed and intended to be connected to a liquid dispensing unit, in particular a faucet, a storage connecting portion (112; 212) which is designed and intended to be connected to a liquid storage (114, 116; 214; 216), and a passage arrangement (120; 220) which is configured to put at least two of the liquid inlet, the gas inlet (104; 204), the dispensing outlet (108; 208) and the storage connecting portion (112; 212) into fluid communication with each other, wherein the liquid dispenser apparatus (100; 200) further comprises: a valve arrangement (130; 230) which is seated in the base structure (105; 205) and configured to control a fluid passage of the liquid inlet and/or the gas inlet and/or the dispensing outlet and/or the storage connecting portion, and a control unit having at least one signal input which is configured to be connected to a user interface, and at least one signal output which is configured to be connected to the valve arrangement (130; 230) such that the valve arrangement (130; 230) is controlled by the at least one signal output, characterised in that the base structure (105; 205) of the liquid dispenser apparatus is formed by a molded structure or by a machined structure. a valve arrangement (130; 230) which is seated in the base structure (105; 205) and configured to control a fluid passage of the liquid inlet and/or the gas inlet and/or the dispensing outlet and/or the storage connecting portion, and a control unit having at least one signal input which is configured to be connected to a user interface, and at least one signal output which is configured to be connected to the valve arrangement (130; 230) such that the valve arrangement (130; 230) is controlled by the at least one signal output, characterised in that the base structure (105; 205) of the liquid dispenser apparatus is formed by a molded structure or by a machined structure.