To install a kitchen sink drain assembly, position the drain assembly in the sink hole and apply plumber’s putty around the edge. Secure the assembly with washers and nuts from underneath the sink. Connect the drain pipe to the P-trap and ensure all connections are tight. Turn on the water supply and check for leaks, making any necessary adjustments.

Installing a kitchen sink drain assembly involves positioning, sealing, and connecting components. Benefits include improved drainage and leak prevention. Challenges include ensuring proper alignment and tight connections. Detailed instructions and thorough checks help ensure successful installation.