In the installation of the house connections to the house sewer laterals, the following standards are hereby established as to the pipe to be used.
Connections made to one- or two-family dwellings shall use 45 pounds per length (five feet), medium-weight cast-iron pipe of the best quality, or 60 pounds per length (five feet), extra-heavy-weight cast-iron pipe of the best quality, no less than four inches in diameter, or Class 3300 asbestos cement pipe.
House connections made to buildings other than one- or two-family dwellings shall use 60 pounds per length (five feet), extra-heavy-weight cast-iron pipe of the best quality, no less than four inches in diameter, or Class 3300 Transite.
In the event that the existing house drain to which the house connection is to be connected is larger than four inches in diameter, then in such event the pipe to be used in making such house connection must be of such larger size for its entire length.
Extra-heavy-weight cast-iron pipe or its equivalent in asbestos cement pipe rather than medium-weight cast-iron pipe as herein permitted shall be used in the installation of any house connection under driveways, under filled areas or in any other area as may be directed by the Plumbing Inspector, whose decision thereon shall be final.
The use of medium-weight cast-iron pipe in installations made to one- and two-family dwellings as herein permitted shall apply only to house connections made to the public sanitary sewer and shall not apply to connections made to private sewage disposal systems, which shall still require the use of extra-heavy-weight cast-iron pipe or equivalent asbestos cement pipe.
All pipes used in the installation of house connections shall be laid on a smooth bottom, with a special groove cut in the bottom of the trench for each hub (in order to give the pipe a solid bearing throughout its entire length). The soil shall be well rammed on each side of the pipe. Such pipe shall be laid with the joints properly caulked with lead, or with rubber rings for asbestos cement pipe properly joined. The spigot end and hub ends shall be concentric.
All pipe used in the installation of house connections shall be so installed that the legend imprinted thereon indicating the weight of such pipe may be seen from above and shall be exposed for its entire length for examination and approval of the Plumbing Inspector.