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B . Polyvinyl Chloride (PVC) Fittings <br /> 1 ) Fittings installed in polyvinyl chloride gravity sewer pipe shall conform to <br /> ' the same specifications as the pipe in which they are installed. All wyes , <br /> fittings, laterals , etc . shall be manufactured by "LASCO", or approved equal . <br /> Adapters shall be compatible to the approved pipe and appurtenances . All <br /> joints shall be glued slip joints . <br /> ' C . Sanitary Clean-Outs <br /> 1 ) Clean-outs shall be constructed of an in-line P .V . C . sweep and riser pipe, the <br /> ' same size as the gravity main. The riser pipe shall terminate with a slip by <br /> F . I . P . T. hub installed at finished grade. A solid bronze, countersunk, square <br /> headed plug shall be provided in the hub . <br /> D . Buried Identification TaDe <br /> ' Detectable buried identification tape shall be installed over all pipe. <br /> Tape shall be 2 inches minimum width, consisting of a minimum 5 mil overall <br /> thickness with a solid aluminum foil core . Construction shall be 2 mil clear film, <br /> reverse print laminated to aluminum foil to 2 mil clear film, making the film <br /> permanently printed. <br /> Tape shall be furnished in manufacturers' standard roll length, <br /> meeting the <br /> "American Public Works Association" (APWA) color code, and shall be imprinted <br /> continuously with the appropriate lettering for the intended use . <br /> 3 . INSTALLATION <br /> A . General Requirements <br /> 1 ) All pipe and structures shall be installed on dry, firm bedding . The free <br /> water surface shall be shall be lowered to at least 4 inches below the <br /> bedding surface prior to placing pipe or structures and shall be <br /> maintained at that depth throughout bedding and initial backfilling of the <br /> work. During subsequent backfilling, the water level shall be kept <br /> ' sufficiently below the working surface to allow compaction of <br /> backfill to the required density until required density tests have been <br /> performed . <br /> ' 2) Trenching and subsequent backfilling within the general construction site <br /> shall be accomplished as expeditiously as possible in order to prevent <br /> ' trench decay and maintain a clear operational area. <br /> C:\Down1oad\techspec-02603 . doc Sc603-2 <br />