If you want to make sure your pet has fresh water you could get this Animal Planet Automatic-Flow Pet Water Fountain for $19.99.
46 oz. reservoir encourages cats or dogs to lap up never-stagnant water from the ever-bubbling spigot
I don’t know about you but I get a kick out of reading Groupon’s descriptions. Take this for instance: “The Animal Planet automatic-flow pet water fountain’s ever-spouting spigot makes a soft trickling noise that reminds pets of the trickling runnels and soda fountains of the wild.”