How do you stop whirlpool bath smelling?

To stop a whirlpool bath from smelling, regularly clean and maintain the tub by draining the water and scrubbing the surfaces with a non-abrasive cleaner. Ensure the jets and filters are thoroughly cleaned to remove any buildup of bacteria or mold. Use a mixture of vinegar and baking soda to eliminate odors, and keep the water treated with appropriate chemicals to prevent the growth of algae and bacteria. Finally, always allow the tub to dry completely after use to prevent moisture-related smells.