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907.04 Subd. 3. Construction Specifications: 907.04 a. Materials: All pipe shall be cast iron soil pipe conforming to A.S.T.M. Standard Specification A-74-80, vitrified glazed clay sewer pipe conforming to A.S.T.M. Standard Specification C-700-78A, asbestos cement sewer pipe, conforming to A.S.T.M. Standard Specifications C-428-80 or PVC plastic sewer pipe, conforming to A.S.T.M. Standard Specification D-3033 or D-3034. All pipe used shall be a four inch (4") diameter pipe; except, that when vitrified glazed clay sewer pipe is used, it shall be at least six inch (6") diameter pipe. b. State Plumbing Code Incorporated by Reference: There is hereby adopted and incorporated by reference, the "State Plumbing Code"', as amended. All sanitary sewer construction and material shall be in accordance with the provisions of said Code. C. Joints and Connections: (1) Cast Iron Soil Pipe: Hub and spigot shall have a compression type gasket, or hubless joints will be made with fittings conforming to C.I.S.P.I. Standard 301-72. (2) Vitrified Glazed Clay Sewer Pipe: Compression joints for vitrified glazed clay pipe will conform to A.S.T.M. Standard Specification C425-77, relating to rubber ring -sealing elements, rubber for other than ring -sealing elements, plastic components or metallic components. (3) Asbestos Cement Sewer Pipe: Joints for asbestos cement sewer pipe shall be made by use of the manufacturer's joint, which shall include an asbestos cement sleeve, together with rubber rings which shall form a tight and flexible joint. d. Grades: Unless otherwise authorized, all house sewers shall have a grade of not less than one -eighth inch per foot (1/8" = 1'). A grade of one-fourth inch per foot (1/4" = 1') should be used wherever practical. The person to whom the permit is issued shall check grades before construction proceeds. Wherever possible, the connecting sewer shall join the building at an elevation which is below the basement floor of such building. e. Alignment: No connecting sewer shall contain bends or a combination of bends which, at any point, shall be greater than forty five degrees (45°), except where cleanouts are constructed at such points and in a manner as directed by the Building Inspector. No connecting sewer shall be laid parallel to any bearing wall or footing unless farther than three feet (3') from any such bearing wall or footing. No connecting sewer shall be laid within twenty feet (20') of any existing well, except in a manner specifically approved by the Building Inspector. ' See Section 1004.01 of this Code. City of Mounds View