Patent ID: 7364654

Claim:
A water treatment system comprising: a cylindrical pressure vessel defining an opening at one end of the vessel; a flow transfer tube centrally positioned within the pressure vessel, extending through the opening in the pressure vessel, and defining a cylindrical opening in a side of the flow transfer tube near an end of the tube extending from the pressure vessel, the cylindrical opening adapted to receive and sealably engage a connector pipe; a bed of granular filter media within the pressure vessel and substantially surrounding at least a portion of the flow transfer tube; an ultraviolet lamp assembly disposed within the flow transfer tube; a coupling adapted to receive and retain the flow transfer tube and ultraviolet lamp assembly, sealably engaging an end of the flow transfer tube and an end of the ultraviolet lamp assembly, and defining a cylindrical opening in a side of the coupling into the cylindrical cavity of the coupling, a pipe fitting sealably engaging said cylindrical opening, and a connector pipe extending through the pipe fitting and sealably engaging the cylindrical opening in the side of the flow transfer tube; a filter media retainer sealably engaging the bottom end of the flow transfer tube opposite the end engaging the coupling, the filter media retainer nozzle adapted to prevent filter media from entering the flow transfer tube, while allowing water to flow freely in either direction through openings in the retainer; and a flow control valve sealably connected to the end of the pipe fitting opposite the end engaging the coupling and to the end of the connector pipe opposite the end engaging the flow transfer tube, and adapted to control water flow through the flow transfer tube and pressure vessel.