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End restraint couplings (MULTIGRIP)Repairing

The pipe is 36” SDR 11 HDPE.  The existing coupling that was installed on the project was a 36”competitor 400 Coupling – the HDPE pipe pulled out of the coupling within two years. The siphon needed to be repaired immediately to support the local infrastructure. Successful supply and time sensitive production on the 36” MultiGrip Couplings for Alaska from NOVA SIRIA. Owner: Chugach Electric Association, Inc. Contractor: McMillen Engineer: MWH/Stantec