Sewers and connections to public sewers shall be constructed as follows:  The sewer shall be of premium quality vitrified sewer pipe, with a premium joint or 3034 PVC or a material of equal quality, not less than six inches in internal diameter and shall be laid in an open trench.  In order to permit ventilation of the public sewer and house sewer, no trap shall be placed in the house sewer.  After the sewer is laid and before it is covered or used, it shall be inspected and approved by the Director of Public Service or his authorized agent.
('65 Code, § 931.05)  (Ord. 2625, passed 4-11-61)