A permit to construct a house sewer or to connect to a public sewer shall specify the permissible use of such house sewer and connection, and such specifications shall be governed by the following requirements:
(a) Sewage, including wastes from water closets, urinals, lavatories, sinks, bathtubs, showers, laundries, cellar floor drains, garage floor drains, bars, soda fountains, refrigerator drips, drinking fountains and other objectionable wastes, shall be discharged into a sanitary or combined sewer and in no case into a storm water sewer.
(b) Industrial waste shall not be discharged into a storm sewer but may be discharged into a sanitary sewer if the waste is of such a character as not to be detrimental to the sewer system or to the sewage treatment works. Where such waste is detrimental to the sewer system or sewage treatment works, it shall be otherwise disposed of in a manner satisfactory or so improved in character as not to be detrimental to the sewer system or sewage treatment works.
(c) A connection from a cesspool or privy vault shall not be made into a sanitary, combined or storm water sewer.
(d) A trap for the interception of grease and oil shall be provided on a connection from a hotel, restaurant, club or institutional kitchen and from a public garage or automobile washing station. Such trap shall be satisfactory to the Director of Public Service.
(e) No person shall discharge into a house sewer or tap a house sewer for the purpose of discharging into it any waste or drainage water prohibited by the provisions of this section.
(f) Any existing connection in violation of the provisions of this section shall be abandoned and removed.
(1941 Code, Sec. 17-16.)