If a meter is found to be not registering, the charges for regular service shall be at the minimum monthly rate or based on the estimated consumption, whichever is greater. Such estimates shall be made based on the previous consumption for a comparable period or by such other method as is determined by the utility billing department and its decision shall be final. The city shall repair or replace the meter at its expense. [Ord. 910 Art. 8, § 6, 2016; Ord. 878 Art. 8, § 6, 2015.]