An effective and efficient pipe rehabilitation requires the involvement of every side of the investment process: an investor, a designer and a contractor. Trenchless methods used in such cases are still not sufficiently known by the broad range of the investors and designers, even the contractors frequently prefer to choose their own methods. It is not possible to present all of the mistakes that are being made throughout the process but displaying even a part of them will allow an improvement in the field of executing projects and operating the infrastructure.

Andrzej Roszkowski, ARC