(a) Specifications. The installation and use of polyvinyl chloride (PVC) sanitary sewer pipe shall be permitted within the City sewer district provided that such pipe meets the following specifications:
(1) Quality of pipe.
A. Standards. PVC sewer pipe and fittings shall conform to ASTM D3034 or D3033. The Standard Thermoplastic Pipe Dimension Ratio (SDR) (average outside diameter divided by minimum wall) shall be as shown on the plans. All pipe spigots shall have a home mark to facilitate joint closure.
B. Fittings. PVC fittings shall be factory made and provided with joints of proper design to connect to the pipe, or approved adapters shall be furnished to connect the pipe to the fittings. Adapters shall be provided for connection to pipes of different materials. All joints and fittings shall be formed to provide as nearly as practical a leakfree and easily assembled system.
C. Certificate. A manufacturer's certificate that the PVC material and pipe were manufactured and tested in accordance with the appropriate ASTM specification shall be furnished to the Engineer prior to installation of the pipe.
D. Straightness. Pipe intended to be straight shall have a maximum deviation from straightness of one-sixteenth of an inch per lineal foot when measured in accordance with ASTM D2122.
E. Inspection. All pipe and fittings will be inspected by the Engineer or his or her authorized representative immediately prior to installation, and all rejected pieces must be completely removed from the project. Pipe acceptable to the Engineer shall be substituted for rejected pieces at the contractor's expense. No repairs of pipe or fittings will be allowed; undamaged lengths of straight pipe may be salvaged by neatly sawing off the damaged portion of the pipe.
(2) Pipe joints. PVC sewer pipe joints shall be elastomerically gasketed. The gasketed joint shall be so designed that when assembled, the elastomeric gasket inside the bell is compressed radially on the pipe spigot to form a positive seal. The joint shall be so designed to avoid displacement of the gasket when installed in accordance with the manufacturer's recommendation. All gaskets shall be molded into a circular form or extruded to the proper section and then spliced into circular form and shall consist of a properly vulcanized high-grade elastomeric compound. The basic polymer shall be natural rubber, synthetic elastomer or a blend of both. The gasket shall provide an adequate compressive force so as to affect a positive seal under all combinations of joint tolerances. The gasket shall be the only element depended upon to make the joint flexible and watertight.
(3) Installation. The following specifications for the installation of PVC sanitary sewer pipe shall supplement and/or modify general installation specifications for sewers.
A. Exposure to sunlight. Care shall be taken to protect PVC pipe from prolonged exposure to heat or direct sunlight (ultraviolet rays).
B. Connections. Connections to pipe of different materials shall be made with the proper adapters.
C. Closures.
(b) Stubs and Services. All closures at the ends of stubs and house services shall be made by the use of a PVC cap, solvent cemented to the spigot end of the stub. A sufficient length of stub should be installed to permit cutting off the closure and extending the stub in the future.
(c) Wyes and Tees. All closures at the ends of wyes and tees shall be made by solvent cementing a length of PVC pipe to the wye or tee and solvent cementing a PVC cap to the spigot end of the PVC pipe. A sufficient length of pipe should be installed to permit cutting off the closure and extending the line in the future.
(d) Mechanical. Mechanical plugs are not permitted.
(e) Deflection Test. Pipe deflection shall not exceed five percent (5%). All installed pipe shall be tested for deflection to finish grade. The method of testing shall be subject to the approval of the Engineer. If rigid balls or mandrels are used to test the pipe deflection, no mechanical pulling devices shall be used.
(f) Manufacturer. The manufacturer of the PVC pipe furnished shall provide installation instruction and literature to the contractor so that he or she will be aware of the manufacturer's recommended procedure and practice installing pipe and fittings. The cost of this instruction shall be included in the price bid for the pipe and fittings.
(g) Testing Requirements. Prior to acceptance, PVC sanitary sewer pipe shall meet the following testing requirements:
(1) The pipe shall be completely tested by the following methods before acceptance by the City:
Air Test ASTM F 1417
Mandrel (Go/No-Go) 5% maximum deflection
(30 days after installation and backfill)
Electronic Video TV Visual acceptance
(30 days after installation and backfill)
(2) The test shall be made within thirty days following final installation of all PVC pipe per resolution and upon written request of the contractor. The test shall be made within two months of the expiration date of the contractor's maintenance bond.
(Ord. 2016-21. Passed 11-28-16.)