The Animal Planet automatic-flow animal water fountain's ever-spouting spigot makes a soft bubbling noise that reminds animals of the dripping runnels and soda fountains of the wild. Cats and pet dogs take turns lapping up the stream of never-stagnant water drawn from a detachable 108-ounce reservoir. The transparent tank permits moms and dads to evaluate when water levels are exhausting. A conventional wall outlet powers the fountain.