Patent ID: 7913331

Claim:
An integrated domestic utility system comprising; a. means for collecting a predetermined volume of rainwater; b. means for storing said predetermined volume of rainwater; c. means for collecting a predetermined volume of grey water; d. means for storing said predetermined volume of grey water comprising a grey water storage tank; e. a self-regulating valve between said means for storing the predetermined volume of rainwater and said means for storing the predetermined volume of grey water; f. a pump for distributing a demand amount of grey water from the means for storing the predetermined volume of grey water to an at least one toilet fixture storage tank for flushing; g. means for maintaining the predetermined volume of grey water at a desired temperature, comprising a heat exchange circuit; further comprising a programmable controller for controlling the grey water tank water level and ensuring it does not run dry; wherein, said pump is disposed in close proximity to the grey water tank and comprises a suction conduit having an intake with an intake filter disposed proximate to the bottom of the grey water tank and a discharge conduit in fluid communication with the at least one toilet fixture storage tank; wherein, the pump further comprises a pressure switch for sensing fluid pressure in said discharge conduit so that when a valve in the at least one toilet fixture storage tank opens due to flushing, the pump starts and pumps water from the grey water storage tank to the empty at least one toilet fixture tank; and, wherein said heat exchange circuit comprises at least one solar energy collector in re-circulating heat transfer fluid communication with a radiating heat exchanger disposed within the grey water storage tank and permanently submerged below the water retained behind a baffle therein, wherein said radiating heat exchanger comprises a heat transfer fluid intake, a heat transfer fluid discharge and a radiating coil between said heat transfer intake and discharge.