Using the Zeus Fresh & Clear Dog Drinking Fountain is easy. First, fill the translucent reservoir with clean water. You can easily see when it's time to refill. Place the fountain in an area where your dog can access it comfortably. The raised drinking surface is designed for your small to medium-sized dog's convenience. When your dog drinks from the fountain, the quiet pump keeps the water flowing continuously. The splash guard helps prevent water from splashing around. To keep the water clean, make sure to replace the triple-action filter every 30 days. This will remove hairs and debris from the water. You can also clean the fountain regularly with mild soap and water. Just unplug it first and make sure it's dry before plugging it back in. That's all there is to it! Your dog will enjoy fresh, clean water with this great fountain.