For the purpose of said purchase the municipality may issue bonds, which shall be secured solely by such waterworks, systems, and property, and the revenues thereof, and without other liability whatever of said municipality thereon, to an amount not exceeding the appraisement of the value fixed by said appraisers or the court. The proceeds of the sale of such bonds shall be used exclusively for the purpose of making payment for the property so acquired.
53 P.S. § 2965