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Abstract

A water treatment apparatus which facilitates the installation of a water treatment unit and prefilter into an existing plumbing system. The apparatus includes a bypass valve interconnected with a prefilter and water treatment unit using a connection box. The fittings and orientations are chosen for the components so that various configurations and orientations can be easily accommodated and with a minimum of parts. The apparatus eliminates the need for fabricating conduit segments, etc. at the installation site. The apparatus for connecting a water treatment unit to a water distribution system includes a control valve having spaced apart inlet and outlet ports and a connection module defining first and second flow passages. The first flow passage extends between first and second external ports and the second flow passage extends between third and fourth external ports. The first and third external ports are arranged and configured to correspond to the configuration and. spacing of the control valve inlet and outlet ports. A filter unit includes inlet and outlet ports that are configured and oriented to correspond to the configuration and spacing of the control valve inlet and outlet ports. The filter includes a filter head and a sump releasably coupled to the head. The sump at least partially defines a filter chamber containing a replaceable filter element. A cup seal seals the interface between the head and the sump and includes a sealing lip that is urgent to sealing engagement with a filter chamber wall by water pressure. At predetermined lower water pressures the sealing engagement between the seal and the chamber wall is reduced to enable the sump to be decoupled using hand manipulation. At least one of the filter ports is swivelly connected to the head to enable the orientation of the port to be changed.

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First Claim