City of Tshwane MMC for Utilities, Regional Operations and Co-ordination, Themba Fosi says the Water Tanks Mafia is being felt across the city especially in Bronkhorstspruit where in several instances infrastructure was being tampered with. Fosi says there are instances where invoices from water tankers are questionable. Fosi further says the spends an estimated R98m on water tankers a year.