Do all restroom trailers need a generator?

Yes, all restroom trailers require electrical power to operate their water pumps, interior lighting and sometimes heating or air conditioning. The rental company will specify the amperage needed, which ranges from 20 amps for a small two-stall unit to 50 amps or more for a larger trailer. You have two options: a hardwired connection to a building's electrical panel or a generator. Since your park event lacks power hookups, you must rent a generator.

Some restroom trailers have battery backups for lights during brief power losses, but these batteries cannot run the water pumps continuously. Skipping the generator means the trailer will have no running water, no flush toilets and no interior lights after the battery depletes. The holding tanks will still collect waste, but guests will find the unit nonfunctional. Always confirm the power requirements with your rental operator and include the generator in your quote.