The object of the project is the replacement of the pipelines of the old water supply network supplied by the reservoir of St.Tryphon and concerns the southern part of the city of Drama (areas of St. Tryphon, Ampelokipi, Straimachos, 40 Churches and Suburban) by new polyethylene pipelines, which will improve the quality of drinking water, will reduce the damage and save water lost by invisible leaks.