After several dozen years of water pipeline usage, thick and hard pollutions layers in the form of stone are deposit inside. Such impurities are characterized with great hardness and adhesion to the substrate because the main compounds of them are iron, manganese, calcium and silicon. Effective cleaning of such pipeline is a real problem. Theoretical and experimental profile of developed hydrodynamic method of pipeline renovation using high-pressure water jet is presented too. Based on the whole work it should be mentioned here that this method of water pipe cleaning ensures high effectiveness of the process, since solid sediment is removed from 93-96% of total inside area of a pipe. A significant rate of pipeline cleaning (of the order of 100-120 m/h) at low consumption of process water (less than 6 m~3/h) ensures low cost and short processing time. Moreover, this cleaning method is environmentally friendly because a working medium is clear water.
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