Abstract: A water bowl for a pet that automatically refills itself. The water bowl includes a bowl having an open interior volume in which water can be stored. A water supply tube extends from an exterior of the bowl to an interior thereof. The water supply tube includes a connector thereon that is configured to removably receive a water supply line. The water supply tube includes a float valve, having a float that is disposed within the bowl. When the water level in the bowl drops below a certain level the change in position of the float causes the float valve to open so that water from the water supply line flows through the water supply tube and into the bowl.