Abstract: An animal watering apparatus has a centrally located cylindrical casing extending vertically downwardly in the ground with the surface of the water in the casing being located generally at ground level. A liquid level device or regulator is located below the surface of the water in the casing so as to not be susceptible to freezing. A water supply line is located below the frost line of the ground and provides water to the liquid level device in the central casing. A second casing is positioned in the ground and is connected to the central casing at the bottom of both casings such that the water supply to the central casing is also supplied to the second casing. Insulation surrounds substantially the length of the first and second casings. The liquid level device may be readily removed from the central casing from the ground surface so as to service the liquid level device and its associated tubing.