Main drain & cleanout
Drain branches join the main line, which carries wastewater away to a sewer or septic system. A cleanout gives a plumber access.
- Branch drains. Wastewater from multiple fixtures joins a larger drainage line.
- Cleanout access. The capped branch provides access for plumbing service. It is not an open drain for everyday use.
- Leaving the home. The main line carries wastewater toward a sewer or septic system. The destination depends on the property.
