What's the weirdest thing you've found in a porta potty tank?

The weirdest thing I have ever seen in a standard unit was a full set of construction plans, rolled up tight and shoved through the seat opening. It was on a site where the OSHA 1926.51 rules applied for the crew size, so they had multiple units. The plans were soggy but still legible, and the project manager was not happy. I have heard stories from other drivers about finding tools, phones, and even a pair of safety glasses. In my experience, deluxe units with sinks and mirrors get fewer strange items, probably because people treat them with more care. Restroom trailers are even cleaner, but they still need regular service visits to keep them functioning. The type of unit and how often it gets serviced really affects what ends up inside.

Priya is right about the cleaner deluxe units. The flushing mechanism and sink in a deluxe unit mean users see it more like a real bathroom, so they rarely drop odd items in. But the holding tank can still get strange things, especially if kids are around. I once found a child's toy car in a deluxe unit at a park event. Restroom trailers are the cleanest because they're fully enclosed and often locked after hours, but their gray water tanks sometimes collect jewelry or small items washed down the sink.