What causes a public sanitary sewer main backup?

Sanitary sewer backup can be caused by a number of factors. The most common cause is due to a blockage in the main sewer line. Causes may include breaks in the pipe, the intrusion of tree roots, clogging due to an accumulation of grease or sediment, or foreign objects, system deterioration, inflow/infiltration of storm water into the system via low manholes, broken house lateral connections and cracked pipes.

Show All Answers

1. What causes a public sanitary sewer main backup?
2. What causes a private sanitary sewer lateral backup?
3. What causes a public storm sewer main backup?
4. What causes a private storm sewer lateral backup?
5. How do the footer drains work?
6. What causes footer drain backups?
7. Should I install a backwater prevention valve?
8. Should I consider a special rider added to my homeowner's or renter's insurance policy?
9. What are resident responsibilities?
10. What are City responsibilities?
11. What if a problem occurs?
12. Should I use copper sulfate?
13. Is there a list of contractors licensed with the City?
14. Who should I call for help?