What might have caused the sanitary sewer to back up?
More often than not, the cause of a backup in your lateral is from items that the line is not meant to handle, such as kid’s toys, underwear, towels, diapers, paper products (other than toilet paper), keys and even false teeth. What you flush down the toilet may not affect you, but it might cause problems for your neighbors! Another possible cause would be roots in your lateral. The sewer lateral is the responsibility of the owner of the property from the house to the street.
