What is the purpose of a toilet breathing tube and how does it contribute to the overall functionality of a toilet system?

The purpose of a toilet breathing tube is to prevent air pressure buildup in the Plumbing system, which can cause flushing issues and potential damage. It allows air to enter the pipes, ensuring smooth and efficient drainage of waste and water from the toilet bowl. This contributes to the overall functionality of the toilet system by maintaining proper airflow and preventing clogs or backups.