No pipe or fitting shall be permanently supported on saddles, blocking, or stones.
Branches and fittings shall be laid by the Contractor as indicated on the drawings, and/or as
directed by the Engineer. Open ends of pipe and branches shall be closed with PVC caps
secured in place with pre-molded gasket joints or as directed by the Engineer.
All pipe joints shall be made as nearly watertight as practicable. There shall be no visible
leakage at the joints and there shall be no sand, silt, clay, or soil of any description entering
the pipeline at the joints. Where there is evidence of water or soil entering the pipeline,
connecting pipes, or structures, the defects shall be repaired to the satisfaction of the
Engineer.
The Contractor shall build a tight bulkhead in the pipeline where new work enters an existing
sewer. This bulkhead shall remain in place until its removal is authorized by the Engineer.
Care shall be taken to prevent earth, water, and other materials from entering the pipe, and
when pipe laying operations are suspended, the Contractor shall maintain a suitable stopper
in the end of the pipe and also at openings for manholes.
As soon as possible after the pipe and manholes are completed on any street, the Contractor
shall flush out the new pipeline using a rubber ball ahead of the water, and none of the
flushing water or debris shall be permitted to enter any existing sewer.
M. A tracer tape shall be placed in the trench as specified in Section 02518, TRACER TAPE.
3.02 CLEANING:
A. On completion of a section of sewer, the Contractor shall TV inspect the main section in
accordance with Section 02441, Cleaning and Television (CCTV) Inspection of Pipelines at
no additional cost to the Owner.
3.03 TESTING
A. Testing of pipe joints to identify joints that are defective shall be performed using either
liquid or air, at the Contractor's option. Test pressure used shall be acceptable to the
Engineer.
B. The allowable pressure drop shall be 0.5 pounds in 15 seconds at a pressure greater than %
pounds per vertical foot of pipe cover, or 4 pounds minimum.
C. — Electronic video equipment shall be capable of displaying and recording, at a minimum, the
following data for each pipe joint:
1. Project Identification
2. Date recorded
2022 Sewer Replacement Project Polyvinyl Chloride Gravity Pipe and Fittings
Nashua, NH 02085-4
