Patent ID: 7621295

Claim:
A system for isolating and controlling a flow of fluid comprising: an appliance having an inlet port and an outlet port; a first valve having a first flow port, a second flow port, and a drain port formed in a unitary valve body, said first flow port of said first valve in fluid communication with a fluid source and said second flow port said first valve in fluid communication with said inlet port of said appliance, said first valve being configurable between a first and second position in the unitary valve body, when said first valve is in said first position said fluid source is in fluid communication with said appliance and when said first valve is in said second position said appliance is in fluid communication with said drain port of said first valve; and a second valve having a first flow port, a second flow port and a drain port formed in a unitary valve body, said first flow port of said second valve in fluid communication with said outlet port of said appliance and said second flow port of said second valve in fluid communication with a plumbing system, the second valve being configurable between a first and second position in the unitary valve body, when the second valve is in said first position said appliance is in fluid communication with said plumbing system and when said second valve is in said second position said appliance is in fluid communication with said drain port of said second valve.