To remove a kitchen sink drain assembly, first, disconnect the drainpipes and place a bucket underneath to catch any water. Unscrew the drain flange from the sink and remove it along with the drain assembly. Clean any remaining debris from the sink opening. Install the new drain assembly by following the manufacturer's instructions, ensuring a watertight seal.

Removing a kitchen sink drain assembly is essential for repairs or replacements. Benefits include a clean installation and improved sink function. Challenges include handling potential mess and ensuring proper installation. Follow manufacturer instructions and ensure all connections are secure for the best results.