The sewer collector on Sisakan and Israelyan Streets in the town of Sisian had become blocked. Since the blockage in one section of the sewer line could not be cleared by any available method, the Sisian Operations Unit replaced the problematic section, approximately 40 meters long, by installing a double-wall polyethylene pipeline. At the same time, three manholes were repaired, and as a result, the operation of the sewerage system was fully restored.
