Dampen a cloth with hot water and add a drop of laundry detergent to the cloth.
Scrub the leather in sections, scrubbing one panel at a time.
Moisten a toothbrush with hot water and a drop of laundry soap, and scrub along seams and between the panels of the ball.
Moisten a cloth with fresh, clear water and wipe over the ball once more to remove any remaining soap. Let the volleyball air dry
Rub a thin, even coating of leather conditioner onto the ball. The cleaning will remove much of the moisture, which will lead to cracked leather over time. Conditioning will replenish moisture to the ball.