If occasional or repeated monthly consumptions occur, as shown by a detector check meter, indicating unauthorized use of water which is not for fire suppression purposes, and if, after being informed of such unauthorized usage by the utilities superintendent, the customer fails or refuses to take corrective action to ensure that the unauthorized consumption will not continue, the detector check meter shall be replaced by an approved fire service meter and the customer shall pay all costs incident to such replacement. Thereafter the customer shall pay for all water used through such replaced service at the applicable metered rate. (Ord. 1237-86 § 51, 1986.)