The Petmate Ultra Bubbler encourages pets to hydrate themselves. Contemporary design blends in with your home décor, and clear water reservoir lets you know when it needs a refill. The bubbling water effect will excite any pet. Special Note/Troubleshooting: Make sure the bottle lid is attached securely to the clear water bottle by pressing down firmly until you feel the lid seal around all edges/sides. If the lid is not securely sealed around all edges, the bowl could overflow.