How much power does a restroom trailer need for a weekend?

Question

We're planning a two-day outdoor fundraiser with about 150 guests, and I'm looking at a 4-stall restroom trailer. The venue only has a single standard 120V outdoor outlet available. I need to know if that outlet can power the trailer's lights and flush pumps for the whole weekend. The trailer will be placed on grass, but there's good truck access for delivery and pumping afterwards. I've read that some trailers have onboard water tanks and need power for the water pump and interior lighting. Is a standard household outlet sufficient for a unit this size, or will I need to arrange for a generator? What's the typical amperage draw for a 4-stall model?

Nina R. · Answer

A single standard 120V outlet is not enough to power a 4-stall restroom trailer for a weekend. You will need a generator. A restroom trailer requires dedicated 20-amp circuits for its water pump, flush valves, ventilation fans, and interior lighting. Most 4-stall models draw 15 to 20 amps continuously when in use, which exceeds the capacity of a typical outdoor outlet shared with other event needs. The trailer's onboard fresh water tank and waste holding tank will need pumping after the event, but since you have good truck access, that won't be an issue. For your fundraiser with 150 guests, a 4-stall restroom trailer is a good fit, but plan on renting a generator with enough fuel for two days to avoid power failures.

How much power does a restroom trailer need for a weekend?

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