Firefighters were called out to the area of Fondren and South Braeswood Sunday morning, where they saved Dylan Bryant.
Bryant told ABC13 he was exploring at a nearby bayou and traveled about 100 yards down a sewer line when he became trapped.
"I can't go back because of how I had to scooch through," Bryant explained. "I'm in the middle of open raw sewage in this little bitty box."
He screamed for help and a man passing by heard him.
"He was walking by and he was like, 'Is somebody talking to me? Is somebody there?' And I go, 'Hey man, down here!' Like something out of the Ninja Turtles," Bryant told ABC13.
The man who heard Bryant then alerted a woman nearby. She called 911.
Bryant calls both of them saints.
He also had a message for his family after the rescue. "Sorry, dad. I know you'll probably be embarrassed."