Any municipality which has issued bonds or notes in accordance with this chapter may by ordinance establish a special fund for payment of all or any part of such bonds or notes or interest thereon, may make and revise necessary rules and regulations not contrary to this chapter for the management of such special fund and may provide for payments into such special fund of all or any part of any charges for connection with or use of the sewerage system or from any other source. The municipality shall not withdraw any moneys from the fund except for such purpose and shall not alter any vote or agreement in respect to revenues to be paid into the fund until such bonds or notes have been paid in full or the special fund is sufficient to do so.