Replacing a kitchen sink drain involves disconnecting the drain pipes and removing the old drain assembly. Clean the sink area and install the new drain by placing it in the sink hole and securing it with a gasket and mounting hardware. Reconnect the drain pipes and check for leaks. Ensure all connections are tight and properly sealed.

Replacing a kitchen sink drain includes disconnecting pipes, installing a new drain, and ensuring all connections are tight. Proper sealing and leak checks are essential for a successful replacement.