Revenues of projects.

(1) The governing body shall fix and revise from time to time rates, fees, rentals, tolls or other charges for the use of each project or for the services and facilities furnished thereby and charge and collect the same. Such rates, fees, rentals, tolls, or other charges shall be so fixed and adjusted, in respect of the aggregate of rates, fees, rentals, tolls, or other charges from the project or projects for which a single issue of bonds is issued, as to provide a fund sufficient, together with any other special funds pledged therefor as provided in this part, to pay the cost of maintaining, repairing and operating such project or projects and the principal of and interest on the revenue bonds as the same shall become due and reserves for such purposes and all such other payments required by the proceedings authorizing the issuance of such revenue bonds. Such rates, fees, rentals, tolls and other charges shall not be subject to supervision or regulation by any state commission, board, bureau or agency.

(2) All or a sufficient amount of the revenues derived from a project or projects for which revenue bonds have been issued shall be set aside at such regular intervals as may be provided in the ordinance or resolution authorizing the issuance of the bonds or in the trust agreement securing the same, in a sinking fund which is hereby pledged to and charged with the payment of the principal and interest upon such bonds as the same shall become due, any premium upon bonds retired by call or purchase as herein provided, and for reserves therefor, and to pay the cost of maintaining, repairing and operating the project or projects and reserves therefor, all in the order of priority and manner as shall be provided in such ordinance or resolution or trust agreement. The use and disposition of such sinking fund shall be subject to such regulations as may be provided in the ordinance or resolution authorizing the issuance of the bonds or in such trust agreement, but, except as may otherwise be provided in such ordinance or resolution or such trust agreement, such sinking fund shall be a fund for the benefit of all bonds without distinction or priority of one over another.

(3) If any county, city or town or any department, agency or instrumentality thereof elects to avail itself of the services and facilities afforded by a project financed by it under the provisions of this part, it shall pay for the same at the established rates as the charges therefor accrue, and the revenues so received shall be deemed to be a part of the revenues of such project.