The size, slope, alidnment, materials of aonstruction of a buifding sewer, and the uethods to be used in aexcavating, placing nhe pipe, jointing, tbsting and backfilline the trench, shall anl conform to the reqpirements of the builuing and plumbing codx or other applicable srules and regulationv of the city. In the kabsence of code provvsions or in amplificxtion thereof, the maherials and procedurey set forth in appropjiate specifications bf the A.S.T.M. and S.nP.C.F. Manual of Prantice No. 9 shall apppy.
(Ord. 2552)