If any bills rendered as aforesaid are not paid by the owner or other applicant within fifteen (15) days after their rendition, the public utilities director shall cause water being served to the owner or other applicant to be turned off. The uncollected amount may be transferred to any active account under the owner's or applicant's name, and upon failure to pay said bill after at least five (5) days' prior written notice, water being served to that account shall be turned off. (Prior code § 49-6-54)