1. The preservation of the public health is a governmental function. Love v. Atlanta, 95 Ga. 129, 133 (22 S. E. 29). The establishment and maintenance of a sewerage system by a municipality is for the protection of the public health, and is a governmental function. 38 Am. Jur., 334, § 633; City Council of Augusta v. Cleveland, 148 Ga. 734 (98 S. E. 345); Foster v. Savannah, 77 Ga.App. 346, 349 (48 S.E.2d 686).
2. A municipal corporation has no power to make contracts restricting or limiting its legislative or governmental powers. Macon Consolidated Street R. Co. v. Macon, 112 Ga. 782 (38 S. E. 60); Horkan v. Moultrie, 136 Ga. 561, 563 (71 S. E. 785); Aven v. Steiner Cancer Hospital, 189 Ga. 126, 142 (5 S.E.2d 356).
3. The alleged contract between the City Council of Augusta and the Commissioners of Richmond County was ultra vires and void, in that it restricted legislative and governmental powers of future councils of
4. The contention, that the ordinance, assessing a charge for the use of city sewers by non-residents of the city, was enacted through malice or spite, affords the plaintiffs no right to equitable relief. The courts will not inquire into the motives of a municipal council in the enactment of an ordinance. 37 Am. Jur., 819, § 182; Clein v. Atlanta, 164 Ga. 529, 541 (139 S. E. 46, 53 A. L. R. 933); South Georgia Power Co. v. Baumann, 169 Ga. 649, 653 (151 S. E. 513).
5. The trial court did not err in sustaining the general demurrers of the defendant.
Judgment affirmed. All the Justices concur.