Keeping your cleanout pipe capped is an important port of maintaining your personal service lines and protecting the system as a whole. Through our Cap the Cleanout™ program, LRWRA will install a cap for you FREE of charge! It’s just that simple. But first, we want to make sure you know what a Cleanout Cap is, why this simple replacement is an important part of preserving the sewer system, and how to install a replacement cleanout cap yourself if you choose to. A cleanout is a vertical pipe connected to the underground sewer line. They are typically located near the home and close to the property line. It has a removable cap for ease of maintenance access. It’s important to know the location of your cleanout in case you or your plumber need quick access to the sewer system.