Liquid dispensing arrangements and methods

A liquid dispensing system comprising:

• at least one main liquid supply unit configured to receive a stream of liquid and apply one or more treatments thereto to obtain a treated liquid product, the main liquid supply unit comprises a dispenser,
• one or more secondary liquid supply units fluidly coupled to said at least one main unit, the main liquid supply unit being configured to selectively stream the treated water product to said dispenser or from the main liquid supply unit to one or more of said secondary liquid supply units,
• a controllable supply valve configured to selectively stream the liquid to the main liquid supply unit whenever the treated liquid product is required by the main liquid supply unit, or by one of the one or more secondary liquid supply units,
• at least one controllable dispensing valve configured to selectively stream the treated liquid product to said dispenser,
• at least one main control unit configured and operable to control the dispensing of the treated liquid product from the main liquid supply unit;
• and
• a user interface configured to receive user inputs, and wherein the at least one main control unit is configured and operable to change the state of the at least one controllable dispensing valve based on said user inputs.