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Do we need a generator for a restroom trailer at a park without power?

Priya N.asked 8 viewsRestroom TrailersRestroom trailersGeneratorRestroom trailerSpecial eventPower

Our organization is hosting a two-day food and music festival in a large city park with no electrical hookups. We expect about 800 people per day. The park is grassy and level, and a service truck can drive right up to the site. We're renting a 4-stall restroom trailer that has flushing toilets, sinks with running water, and interior lighting. The rental company said we would need to provide a generator for power.

I'm trying to understand if that generator is absolutely required for the basic operation of the toilets, or if it's just for the lights and maybe the water pump. Could the unit function for a weekend without any power at all, or would the toilets not flush? What happens to the waste in the holding tank if the pump isn't running? Also, if we do need a generator, how big of one are we talking about for a trailer this size?

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Jules T.Sacramento, CA

Yes, you need a generator for the restroom trailer. The generator is required for the basic operation of the flushing toilets and the water pump, not just for the lights.

A restroom trailer with flushing toilets uses an electric pump to move fresh water from its onboard tank to the toilets and sinks. Without power, the toilets will not flush and the sinks will not have running water. The waste in the holding tank does not require a pump to function; it is stored until the service truck pumps it out. However, the unit cannot be used without the pump that supplies the fresh water.

For a 4-stall trailer, the rental company will specify the generator size. The requirement is driven by the total electrical load of the water pump, interior lighting, and possibly ventilation fans. A typical unit might need a generator in the range of 3,000 to 5,000 watts, but you must get the exact specification from your rental company to avoid damaging the equipment. They will know the power requirements for their specific model. Ensure the generator is placed a safe distance from the trailer to prevent exhaust fumes from entering the vents.

  • Toni S. Confirm the wattage with the rental company before you haul a small inverter out there. Lights-only power still leaves the flush pump dead, and guests notice fast.

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