Hot, stagnant water in the summer? High electric bills to heat your water all winter? No thank you! With Drinking Post Waterers, thirsty animals press their nose to a paddle in an empty bowl. Fresh, clean water fills the bowl for as long as the animal presses the paddle. Because the valve is located below the local frost line, the water is roughly 50 F / 10 C year-round. This means fresh, cool water in the summer and fresh, warm water in the winter. Welcome to automatic, frost free watering!