§ (31). Sewers.

To establish, maintain, operate and control sewers, drains and sewage disposal facilities and to make charges for the use of said sewers, drains and sewage disposal facilities; to make any and all costs and expenses incurred in or about the regulation, making or repairing of private sewers or drains a lien upon the interests of the owners in the real and leasehold property served by said sewers or drains, and to provide for the enforcement of such liens by sale of the property, whether real or leasehold.

No charge shall be made by any municipal officer or agency for inspecting any work in the public streets, lanes or alleys done in connection with private sewers or drains.