FIELD: construction. SUBSTANCE: deposit and rust are removed from the inner side of the pipeline. A flexible hose is pulled through the pipeline and pressed to the inner side of the pipeline. The inner side of the pipeline is cleaned with self-propelled device provided with rubber-covered conical rollers, guide rollers, and rotatable shell with brushes which interact with the inner side of the pipeline. The pipeline is then washed with water and dried. Next the flexible hose provided with a glue on outer side is pulled through the pipeline and pressed to the inner side of the pipeline using the device. EFFECT: enhanced reliability. 6 dwg
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