A method of repurifying water from a public supply, comprising the steps of: taking water to be repurified continuously from the public supply; filtering the water slowly through a volume of particulate material; and accumulating the filtered water to provide a store of repurified water for later use as and when required. According to a second aspect of the present invention, there is provided an apparatus for repurifying water from a public supply, comprising: a water inlet adapted for connection to the public supply and operable to take a continuous flow of water from the supply; a filer comprising a volume of particulate filter material and arranged to receive the water from the water inlet; a container arranged to receive filtered water therefrom and to store the filtered water; and a water outlet connected to the container and operable to draw off filtered water as and when required.
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