A pet watering apparatus which can be refilled as water is removed by evaporation or by a thirsty animal, which apparatus has a vessel, overlaid by a platform having a base and at least one leg, which platform has at least 2 apertures therein of one size and a central smaller aperture therein. Disposed in one aperture is a bottle capable of holding water, having a modified Yorker cap thereon, disposed in an inverted position; the Yorker cap's spout having been cut off at about a 45 degree angle. A siphon filter may be disposed through the platform's central aperture to the vessel for connection to a pump to re-circulate water through the siphon for microbe removal. An optional water chiller may be deployed on the platform.