It shall be unlawful for any person owning, maintaining or operating any hotel, apartment house, sanatorium, drugstore, restaurant, lunch counter, soda fountain stand, public garage, oil station, manufacturing plant or other business, to deposit or discharge or permit to be deposited or discharged from his or her establishment into any public sewer, drain or catch basin any water, sewage or liquid waste containing chemicals, grease, oil, tar or other materials in solution which shall or may by reason of precipitation, hardening or congealing clog, obstruct or fill the same or interfere with or prevent the effective and unobstructed use, or which shall require frequent repair, cleaning out or flushing of the sewer, drain or catch basin, or which shall hinder or prevent the proper functioning of the septic tank into which the sewers discharge.
(`83 Code, § 13.12.020)