1. Pre-assembled backwater valve and two clean-outs
2. Digging a hole where building drain is.
3. Backwater valve and two clean-outs are installed on main clay drain pipe.
4. Inside of 6″ PVC pipe that serves as access to backwater valve.
5. 6″ and two 4″ PVC pipes are extended to ground level.
6. Access lids to backwater valve and sewer clean-outs.