What is the purpose of a sewer clean out cap and how can it help in maintaining a properly functioning sewer system?

A sewer clean out cap is used to provide access to the sewer line for cleaning and maintenance purposes. It helps in maintaining a properly functioning sewer system by allowing for easy inspection, cleaning, and clearing of blockages in the sewer line. This can prevent backups and clogs, ensuring the efficient flow of wastewater and preventing potential damage to the system.