Patent ID: 7967027

Claim:
A diverting valve assembly comprising a body containing an opening therein, said opening for receiving a stem cartridge, said body comprising a bottom inlet and at least one laterally directed outlet, said stem cartridge comprising a bottom inlet and at least one laterally directed outlet having a waterway disposed there between, said stem cartridge being operable to selectively permit mixed hot and cold water to flow to said outlet of said body from an outlet of said cartridge, the bottom inlet of said stem cartridge, including the waterway, having a separate replaceable check cartridge including two check valve assemblies in series in the replaceable check cartridge thereby allowing for water to flow from the inlet toward at least one outlet of the stem cartridge but which does not permit the water to return from the waterway through the check cartridge into the waterway to the inlet, said check cartridge have disposed at one end thereof a base to maintain separation of the waterway of the stem cartridge, said base including a keyed portion designed to fit within the stem cartridge to ensure that the waterway properly align for operation of said diverting valve assembly, wherein water from the outlets cannot re-enter the water supply to the valve to contaminate said water supply, and wherein the check cartridge may be replaced without the necessity of replacing the stem cartridge.