The board shall be responsible for the management, control, and operation of the electric, water, sewer, gas, or other utilities presently owned or hereafter acquired by the City of Tuscumbia, including the authority to employ, upon terms to be established by the board, and to discharge managers, cashiers, clerks, attorneys, and other employees as deemed necessary for the operation of the utility systems. The board shall have the power and authority to construct, enlarge, improve, and repair utility systems subject to the financial limitations imposed herein. The board shall have the power and authority to transfer and to distribute and to sell to any one or more customers water, gas, and electricity and to furnish services from any system operated by it, and, further, to establish and collect and alter charges for water, gas, electric, and sewer services and all services of any kind sold or furnished by it. Further, the board may render combined statements or bills for services furnished from its systems and may decline to accept payment of charges for services from any of its systems without payment of charges for services from any one or more of its other systems. The board may provide for discontinuance of service from a system or systems to any customer who shall be delinquent in payment of charges for service. The board shall have the right to delegate to any manager that it may employ the authority to employ and discharge employees; to direct the employees' work; to manage, control, and operate the public utility of the City of Tuscumbia of which he or she is the manager; and to account to the board for his or her actions, but his or her authority shall be restricted as the authority of the board is restricted in this part and, further, as may be restricted by the board.