Aimed at service technicians, this video contains the two chapters in the series on how to maintain a portable toilet dump station, which boaters use to dispose of onboard sewage. The video contains the following: Chapter 1: An introduction to the features of a dump station that is connected to a pumpout station and Chapter 2: Weekly maintenance tasks, troubleshooting advice if the basin won't drain, and winterization tasks (starts at 1:26).
Available on YouTube: https://www.youtube.com/watch?v=yRfHfU6c_TM