A lawsuit is pending after two Slater residents were served glasses of hazardous chemicals instead of water in an Ames restaurant.Kym Broer and her 4-year-old son drank cleaning solution which was poured from a pitcher by a Pizza Hut worker. Both had to be taken to a hospital emergency room and required follow-up medical care. Pizza Hut lawyers won’t comment. No amount of money has been set in the lawsuit.