Patent ID: 7857002

Claim:
A method for isolating an appliance in a plumbing system from a first fluid source comprising: providing a first valve having a first flow path and a drain flow path in a unitary structure, said first valve configured to be actuated from a first position to a second position, in said first position a first fluid source communicates with said appliance through said first flow path of said first valve, in said second position a second fluid source communicates with said appliance through said drain flow path of said first valve said first valve further configured to have a flushing mechanism attached to the drain flow path of said first valve so that a flushing fluid from said flushing mechanism can be pumped into said drain flow path of said first valve, said flushing fluid flowing into said appliance; and providing a second valve having at least a first flow path and a drain flow path in a unitary structure said second valve configured to be actuated from a first position to a second position, in said first position said appliance communicates with said plumbing system, in said second position said appliance communicates with said drain flow path of said second valve, said flushing fluid flowing through said appliance and out said drain flow path of said second valve.