Don't forget to clean your drain when cleaning your kitchen sink. 1. Use Norwex Drain Care as directed. Need another option? Pour one half cup of baking soda down the kitchen drain, then pour one cup of white vinegar. Wait a few minutes then pour hot water. 2. Fill the drain with two cups of ice. Pour a cup of rock salt over the ice cubes. Run the cold water and turn on the garbage disposal until the ice is gone. The ice/salt mixture will help loosen the grime and debris from the grinding elemen