Grease, oil and sand interceptors shall be provided when, in the opinion of the manager, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand and other harmful ingredients except that such interceptors shall not be required for buildings used for residential purposes. All interceptors shall be of a type and capacity approved by the manager and shall be so located as to be readily and easily accessible for cleaning and inspection.
(Ord. 77-42 § 604, 1977.)