Towards Digitalization of Water Supply Systems for Sustainable Smart City Development—Water 4.0 by Kazeem B. Adedeji 1,2,*, Akinlolu A. Ponnle 2, Adnan M. Abu-Mahfouz 1,3 and Anish M. Kurien 1 1 Department of Electrical Engineering, Tshwane University of Technology, Pretoria 0001,...