Patent ID: 6966988

Claim:
A liquid treatment assembly for in-line installation in a plumbing system, comprising a base and an adapter disengageably assembled with one another and cooperatively defining a flushing chamber; said base and said adapter each including an interior wall structure having a mouth portion thereon, said mouth portions of said interior wall structures confronting and engaging one another so that said interior wall structures cooperate with one another to define, within said flushing chamber, an inner compartment and an outer compartment; said base having outlet-defining means, in liquid flow communication with said inner compartment through said interior wall structure of said base, and inlet-defining means in liquid flow communication with said outer compartment, and said adapter having inlet-defining means establishing liquid flow communication only between said inner compartment and the exterior of said assembly, said base inlet-defining means being in flow communication with said base outlet-defining means across said mouth portion of said interior wall structure of said base in the absence of said adapter; whereby a liquid flow path is established in said assembly from said adapter inlet-defining means to said base outlet-defining means through said inner compartment, and flow is blocked through said base inlet defining means.