Things you need to do:
Minimize the use of garbage disposals.
Do not dispose of grease or oil in sinks.
Use cleaners, chemicals and detergents according to
the label’s instructions.
Dispose of all chemicals properly.
Turn off water when not in use, especially at wash
Do these to keep your wastewater flowing
efficiently and to prevent sanitary sewer
Grease and feminine products cause sewer backups…
Cooking oil messed up system