10.26.2021-SBN-Standards-Manufacturer-Additions-Minor-Revisions-final

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SECTION 4 – SANITARY 63 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 ninety percent (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. 4-3.12 STRUCTURE LINING 4-3.12 (a) GENERAL 1.) The rehabilitation and lining shall utilize monolithic spray-application of a high-build, solvent- free polyurethane coating from the manhole invert in working flow line, through the barrel sections, up to and including the cone. A flexible polyamine epoxy shall be utilized for spacer rings. The casting shall not be coated. The purpose is to eliminate infiltration, repair voids, restore structural integrity, and provide corrosion protection. The coating is applied to the wall and bench surfaces of brick/concrete structures. 2.) The manufacturer shall provide written certification the Applicator has been trained and certified by the manufacturer to handle and apply their products, as well as appropriate re - certification documentation, as necessary, by the manufacturer. 3.) Applicator shall initiate and enforce quality control procedures consistent with applicable ASTM, NACE, and SSPC standards and the manufacturer’s recommendations. 4.) Applicator shall conform to all local, state, and federal regulations including those set forth by OSHA, RCRA, and the EPA and any other applicable authorities. 5.) Applicator shall warrant all work against defects in materials and technique for a period of one (1) year, unless otherwise noted, from the date of final acceptance of the project. Applicator shall, within a reasonable time after receipt of written notice thereof, repair defects in materials or technique which may develop during said one (1) year period, and any damage to other work caused by such defects or the repairing of same, at their own expense and without cost to the City. 6.) Any active flows shall be dammed, plugged, or diverted as required in Section 4-3.2 to ensure that the liquid flow is maintained below the surfaces to be coated. 7.) Flows should be completely plugged and/or diverted when coating the invert. All extraneous flows into the manhole or vaults, at or above the area coated, shall be plugged and/or diverted until the polyurethane has set hard to the touch. As an option, hot air may be added to the manhole to accelerate set time of the coating.