The municipal governing authorities are vested with full power to raise the levy on the property, both personal and real, by special assessment within such fire district sufficient to pay for laying such water mains, and to meet the contracted annual rental for such service. Such authorities shall have all power to enforce and collect said taxes as provided by statutes empowering municipalities to collect special assessments, and it shall be done in the same general way and may be assessed at any time and cover such length of time as the governing authorities may deem proper.