Avoid putting fats, oils, or egg shells down the sink or garbage disposal. Grease is a major cause of sewer stoppages.
If you plant trees in your yard, avoid planting them near your sewer lateral. Root intrusion damages mains and laterals. Town crews can help you locate the sewer lateral on your property.
Do not flush plastic materials of any kind down the toilet, including feminine hygiene products or wrappers. These can clog lines, cause backups, and damage pumps.
Flush only toilet paper down the toilet. Paper towels and other paper materials do not degrade quickly and can cause backups.