The mom heard a flush when she went to get a towel. The ring was gone.
Her husband called the public works department on Tuesday and a crew arrived with the township's new $200,000 pipeline-inspection unit. The truck is equipped with a camera that snakes its way through the sewer lines.
The workers soon spotted the ring next to a penny.
Angelica Nols says she wanted to kiss the ring, but the workers advised against it.