The cleanout WHAT?
You may not know that you have a sanitary sewer cleanout. Almost all buildings do. It allows access to the sewer line in case there’s a problem. It’s usually located somewhere between your residence and the street. The cleanout cap is simply the part that keeps it covered.
Why is it important?
If your cleanout cap is missing or defective, it allows storm water and other debris to enter the sanitary sewer system. This has several harmful effects such as: