The present invention provides a novel and improved animal sprayer for use in cooling livestock and other animals in different hot or dry environments, and methods of using the same. Embodiments of the novel animal sprayers may include a valve which does not require constant electric current to remain open during a spraying session, extending system battery life. The valves may also be self-cleaning, less likely to leak, and easily adjusted to control flow rate, reducing both water use and labor costs in monitoring and repairing the animal sprayer.