Any resolution authorizing the issuance of bonds hereunder shall provide for the creation of a sinking fund into which shall be paid from the revenues of the utility, subject only to prior payment of the reasonable and necessary expenses of operating and maintaining the utility, sums fully sufficient to pay the principal and interest of the bonds, and to create such reserve for contingencies as may be required by the resolution. The moneys in the sinking fund shall be applied to the payment of interest on and principal of the bonds or to the purchase or retirement of the bonds prior to maturity in the manner provided in the resolution.
The resolution authorizing their issuance may contain such covenants with the future holder of the bonds as to
La. R.S. § 33:4255