The Technological Center for New Developments in Trenchless Technologies offers elimination of deposits, corrosion products, incrustation, etc. from pipelines using a low pressure water jet (120-150 bar), as well as thorough cleaning of steel pressure pipelines using a high pressure water jet (up to 1200 bar). The dirty water is pumped with a vacuum installation and the solid matters are separated from the contaminated water in a recycling installation. In that way the same water can be used many times for cleaning a given section, which reduces environmental pollution and the time spent on feeding clean water in the machine.