Geneva Pipe and Precast Introduces the Perfect Pipe and Perfect Lined Manhole System Reinforced concrete pipe and precast manhole system with integrated liner is transforming sanitary sewer management. News provided by Share this article Share this article VANCOUVER, Wash., April 27, 2021 /PRNewswire/ -- Geneva Pipe and Precast, a Northwest Pipe Company, is now manufacturing and distributing lined reinforced concrete pipe and precast manhole systems to North America. Using technology new to North America, corrosion resistant Perfect Pipe requires no field welds in most sizes and can connect to any new or existing system. Perfect Lined Manhole system features a monolithic one-pour base that eliminates cold joints and connects to nearly any plastic, clay, concrete or fiberglass sewer pipe.