The Flower Fountain uses running water to encourage your pet to drink more. Drinking regularly is important for your cat's health, as it helps ensure proper kidney function and prevents crystal formation that can lead to urinary diseases.The Catit Flower Fountain includes a dual-action water softening filter (refill sets available separately). The filter continuously purifies and softens hard tap water, while also retaining stray hairs, sediment and debris.The Catit Flower Fountain is easy to disassemble and clean. Simply hand-wash each part with natural soap, free of chemicals or abrasive solutions and rinse thoroughly.