Elements of technical water supply system of pumping units Rustam Ergashev, Jaloliddin Rashidov, Sharof Musaev, Jamoliddin Usarov, Boybek Kholbutaev and Gulchexra Ergasheva E3S Web of Conf., 401 (2023) 01015 Published online: 11 July 2023 DOI: 10.1051/e3sconf/202340101015