Water preparation for medical use

An apparatus for preparing water for use in medical treatment of a human or animal body, said apparatus being configured to receive supply water from a water source and comprising:

• a pre-processing sub-system comprising:
• a filtration device comprising one or more activated carbon filters;
• and
• an irradiation device connected in series to sequentially process the supply water into dechlorinated water, wherein the filtration device is configured to effectively remove chlorine in the supply water using the one or more activated carbon filters, and wherein the irradiation device is configured to effectively remove the chlorine in the supply water by ultraviolet (UV) irradiation so that the filtration device and the irradiation device are mutually redundant with respect to dechlorination;
• and
• a main sub-system arranged to receive the dechlorinated water from the pre-processing sub-system and configured to process the dechlorinated water to generate conditioned water to be used in medical treatment.

A method of preparing water for use in medical treatment of a human or animal body, said method comprising:

• receiving supply water from a water source;
• operating a filtration device and an irradiation device, which are connected in series in a pre-processing sub-system, to sequentially process the supply water into dechlorinated water, wherein the filtration device is configured to effectively remove chlorine in the supply water by filtration through activated carbon, and wherein the irradiation device is configured to effectively remove the chlorine in the supply water by ultraviolet (UV) irradiation so that the filtration device and the irradiation device are mutually redundant with respect to dechlorination;
• operating a main sub-system in accordance with predefined settings to receive and process the dechlorinated water into conditioned water;
• and
• providing the conditioned water for use in the medical treatment.