Opening of Bids - Hibberd Plaza and Streetscape Proj No 117-063R - R. Yoder Construction, Inc.

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4-3.11 (e) COOL DOWN Cool down may be accomplished by the introduction of cool water or air into the installation standpipe to replace water or pressurized air being relieved from the manhole. Cool the hardened pipe to a temperature below 100' F before relieving the static head. A minimum period of post -cure shall be maintained under a static head to provide a minimum hoop tension on the tube felt. Care shall be taken in the release of the static head so that a vacuum will not be developed. 4-3.11(0 END SEALS Install hydrophilic end seals to provide a water -tight connection at all pipe and manhole connections. End Seals shall be installed per manufacturer's recommendations. 4-3.11 W FINISH 1.) The finished lining shall be continuous over the entire length of an insertion run between two manholes and be as free as commercially practical from visual defects such as foreign inclusions, dry spots, pinholes, and delamination. The lining shall be homogeneous, impervious, and free of any leakage from the surrounding ground to the inside of the lined pipe. 2.) During the warranty .period, any defects which will affect the integrity or strength of the liner, collect solids, or reduce hydraulic flow capabilities of the product shall be repaired. 4-3.11 0) REINSTATE LATERALS AND SERVICES 1.) Accurate location of the lateral and service connections shall be made by inspection of the pre -installation video recording. 2.) Upon completion of the main Iine CIPP installation and the approved infiltration/exfiltration testing, immediately proceed with the reinstatement of the lateral sewers. Reinstatement of lateral sewers shall be completed within 12 hours of service disruption. 3.) After the liner has been installed, all existing active lateral sewers and services shall be reinstated unless otherwise indicated by the City Engineer. The reinstatement of laterals and services shall be done without excavation. Reinstatement of laterals and services will be accomplished from the interior of the pipeline by means of a television camera directed cutting device or by direct personnel entry when feasible. All cut lateral and service connections shall be brushed to ensure they are free of burrs, frayed edges, or any restriction preventing free flow of wastewater. Laterals shall be reinstated to a minimum of 90% of their original diameter and no more than 100% of their minimum diameter. The CIPP liner shall be tightly sealed at the cut openings with no gaps. All coupons cut from the liner as a result of reopening the lateral connections shall be retrieved from the sewer and accounted for.