The project concerns the replacement of existing water pipelines in the Municipal Communities of Verga, Mikri Mantinea, Sperchogeia and white soil of the Regional Unit of Messinia, in order to minimise leaks in existing water transmission and distribution networks of DEYAK and to prevent the damage of the networks to ensure the adequate and quality of drinking water in areas of its responsibility. In particular, the project shall include: — The replacement of 13,605 meters of pipelines of the water supply network of D.E.Y.A.K. – Also the installation of two-metre cast iron sliders. With otches, with a nominal pressure of 16 atm. Nominal diameter DN 80 mm pcs. 70 – Pockets of cast iron sliders. With otches, with a nominal pressure of 16 atm. Nominal diameter DN 100 mm pcs 10 – Double cast iron sliders. With otches, with a nominal pressure of 16 atm. Nominal diameter DN 125 mm pcs 20 – Installation of fire hydrants 12