Wear rubber gloves throughout the cleaning process to protect yourself from germs and the harsh ingredients of cleaners.
Rinse the entire surface of the urinal with clean water. Flush it once, then run a wet sponge over the surface.
Take out the urinal strainer. Then, cover the inside of the urinal with a dispenser bowl cleaner. Allow it to sit on the surface for five to 10 minutes.
Rinse the surface again by flushing and wiping out with your sponge. Rinse the sponge as needed in a bucket of warm water, and change the water often.
Spray the entire surface of the urinal with a disinfecting cleaner.
Scrub the outside of the urinal, the floor around it, and the plumbing with a bowl cleaner. Scrub the inside of the urinal with a scrub brush.
Flush the urinal, and rinse the outside with your damp sponge. Put the urinal strainer back in place, and dry the outside of the urinal with a towel.