Should it be desired by the property owner to discontinue the use of all water supplied to the premises, notice in writing must be filed with the city water department. The water shall then be turned off upon payment for water utilized to date of turn off. Where service to any premises has been temporarily discontinued at the request of the user and it is discovered that water use has been resumed without proper notice to the water department, the charge for such use shall be as determined by the water department but shall be not less than the minimum charge for one month nor more than the total charges had there been no discontinuance.