No owner shall display or permit to be displayed in the city any coin-operated device that dispenses any commodity, thing, or service unless such device is of such materials, design, and construction as to make it reasonably certain under normal operating conditions that:
(a) accuracy will be maintained as to quantity dispensed or interval of service provided.
(b) operating parts will continue to function as intended; and
(c) any adjustments required will remain reasonably permanent. (Ord. 13795)