Abstract: A filter for a water cooler includes a housing having a surface and a cavity with cavity ports. The filter end is adapted to be received in the housing. The filter end includes a cylindrical base having a surface and a neck extending from the surface. The neck has filter ports and a side surface. The side surface has oppositely directed axially extending elongated protrusions configured to be received in channels in the housing. The base surface includes a complex set of protrusions which are adapted to be received in a similarly configured set of recesses in the housing surface. The protrusions/recesses may take the form of letters, numbers or symbols. The filter end is be fully seated in the housing in bayonet-type fashion to connect the filter ports and the housing ports o permit water to flow through the filter from the water supply to the water cooler.

Abstract: A water inlet pipe connects a water supply to a faucet. A water flow control valve in the water inlet pipe regulates the flow of water through the water inlet pipe from the water supply to the faucet. A drip tray located beneath the faucet captures water overflow. A conduit connects the drip tray a storage container such that water in the drip tray drains into the storage container. A water level sensor associated with the storage container generates a overflow signal when the water level in the storage container reaches a pre-set level. The water flow control valve automatically prevents water flow through the water inlet pipe to the faucet in response to the overflow signal. A visible display and a sound generator are also energized in response to the alarm signal.