Abstract: An automatic watering system may include a water-retaining vessel defining a water-retention chamber, and a partition positioned within the water-retaining vessel. The partition separates the water-retaining chamber into a valve chamber and a drinking chamber. The partition may include a first water passage at a first level and a second water passage at a second level that differs from the first level. A valve may be operatively connected to a water supply outlet within the valve chamber. The valve is configured to be moved between an open position in which the water supply outlet is opened, and a closed position in which the water supply outlet is closed. A deicer may be disposed within one of the valve and drinking chambers. The deicer is configured to heat the water within both the valve and drinking chambers.

Abstract: An animal watering tank includes a spherical ball closure member which is returnable to its closed position by a track which extends laterally and downwardly into the water. The track is of one piece construction and is secured to the bottom side of the top wall of the tank in an upwardly extending locating recess.