City cleaned sewer line and it blew in our house.Filling bathtubs and torally ruining 3 rooms in house. We have removed carpet,pad and lineloum. Bleached everything. Odor stll unbearable. Do not know what to do now?

Did you take pictures, call the building inspector, mayor, sewer department, everybody, first?
There are companies who do nothing but clean this sort of situation.
They are very expensive and the city should pay for it.
They probably use pressure washers etc to get into every crack and floorboard.
Get a lawyer ASAP on contingency.

Joy's bang on! You have a case against the city. The more pictures the better. Good luck, Tom