A water purification and dispensing system comprising circuitry including: a first purification stage for purifying water to a first water purity grade, the first purification stage comprising a pump to drive the water through the first purification stage; a water recirculation loop including a second purification stage for purifying water to a second water purity grade that is higher than the first purity grade and a dispensing portion including one or more outlet/outlets for the purified water, which one or more outlet/outlets is/are respectively branched off from the water recirculation loop, downstream of said second purification stage in a circulation flow direction in the water recirculation loop; and a reservoir arranged to receive and temporarily store the water purified at the first purification stage through a first connecting flowpath for supplying the water from the first purification stage to the reservoir and to deliver the stored water to the water recirculation loop through a second connecting flowpath, wherein a first valve arrangement is provided in a flowpath between the first purification stage and the reservoir and is arranged to selectively block the flow of purified water from the first purification stage to the first connecting flowpath and to drain the purified water from the first purification stage to a drain, wherein the first purification stage comprises at least an electro-deionisation module for purifying the water and the first valve arrangement is provided downstream of the outlet of the electro-deionisation module, wherein the first valve arrangement is a 3-way valve, wherein an UV radiation treatment device is arranged in the first connecting flowpath for purifying the water downstream of the first valve arrangement and upstream of the reservoir, and wherein a third connecting flowpath is branched from said dispensing portion of said water recirculation loop at a position downstream of the one or more outlet/outlets in the circulation flow direction and is connected to the first connecting flowpath upstream of the UV radiation treatment device and downstream of the first valve arrangement, thus creating a closed recirculation flowpath that allows a circulation of water stored in the reservoir and of water contained in the recirculation loop through the second purification stage unless the water is dispensed from the one or more outlet/outlets. a first purification stage for purifying water to a first water purity grade, the first purification stage comprising a pump to drive the water through the first purification stage; a water recirculation loop including a second purification stage for purifying water to a second water purity grade that is higher than the first purity grade and a dispensing portion including one or more outlet/outlets for the purified water, which one or more outlet/outlets is/are respectively branched off from the water recirculation loop, downstream of said second purification stage in a circulation flow direction in the water recirculation loop; and a reservoir arranged to receive and temporarily store the water purified at the first purification stage through a first connecting flowpath for supplying the water from the first purification stage to the reservoir and to deliver the stored water to the water recirculation loop through a second connecting flowpath, wherein a first valve arrangement is provided in a flowpath between the first purification stage and the reservoir and is arranged to selectively block the flow of purified water from the first purification stage to the first connecting flowpath and to drain the purified water from the first purification stage to a drain, wherein the first purification stage comprises at least an electro-deionisation module for purifying the water and the first valve arrangement is provided downstream of the outlet of the electro-deionisation module, wherein the first valve arrangement is a 3-way valve, wherein an UV radiation treatment device is arranged in the first connecting flowpath for purifying the water downstream of the first valve arrangement and upstream of the reservoir, and wherein a third connecting flowpath is branched from said dispensing portion of said water recirculation loop at a position downstream of the one or more outlet/outlets in the circulation flow direction and is connected to the first connecting flowpath upstream of the UV radiation treatment device and downstream of the first valve arrangement, thus creating a closed recirculation flowpath that allows a circulation of water stored in the reservoir and of water contained in the recirculation loop through the second purification stage unless the water is dispensed from the one or more outlet/outlets.