 Afraid that kids would try releasing their pet fish by flushing them  down a drain, a company that manufactures equipment used by water  filtration and sewage treatment plants released a warning the  Thursday after the film came out saying that, even though drains do  eventually reach the ocean, before it got there the water would go  through equipment which breaks down solids, and went on to say that  in real life the movie would more appropriately be called "Grinding  Nemo".