The Council may by resolution, in all cases where property abuts on any sewer, cause the owner of each abutting lot, his or her agent or the occupant, to make a proper and sufficient sewer connection with the main sewer and their premises, whenever in their opinion, the same may be necessary, and the Clerk upon the adoption of the resolution, shall mail or give to such owner, agent or occupant notice in writing specifying the time said sewer drain must be completed. If said owner, agent or occupant neglects to complete same within the time specified, the Council shall cause it to be done, and the expense thereof may be assessed against the property and, unless paid, shall constitute a lien against premises, in the same manner as the assessment and collection of taxes for the construction of sidewalks. (Ch. 78)