To install a kitchen sink drain, start by positioning the drain assembly in the sink hole. Apply plumber’s putty around the edge to create a watertight seal. From underneath the sink, secure the drain with the provided nuts and washers. Connect the drain pipe to the P-trap and ensure all connections are tight. Turn on the water and check for leaks, making adjustments as needed.

Installing a kitchen sink drain involves positioning the assembly, sealing with putty, and connecting pipes. Benefits include improved drainage and leak prevention. Challenges include ensuring a tight seal and proper alignment. Proper installation helps prevent leaks and ensures smooth drainage.