The CitiKitty cat toilet-training system gradually transitions feline friends from litter box use into the realm of polite bathroom society. After placing the litter-filled training seat basin beneath any toilet seat, cats start getting adjusted to sitting atop the loo. Pet parents remove each ensuing training ring over the course of three to six weeks until their pets fully assimilate to sand-free thrones, though an additional insert can be used to revisit previous stages in the event of training setbacks. The eco-friendly system saves pet owners time and money, and it relegates litter to other thankless duties such as combating beach erosion. The system can be used to train multiple cats at once, and it's safe for adult cats and kittens as young as three months.