1. Department of Water Supply and Sewerage Systems, Faculty of Civil, Environmental Engineering and Architecture, Rzeszow University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszow, Poland
2. Department of Mechanical Engineering Technology, Faculty of Engineering, Transport and Architecture, Khmelnytsky National University, 11 Instytutska Str., 29016 Khmelnytsky, Ukraine