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Restroom trailer leveling: What if the ground has a slight slope?

Owen G.asked 1 viewRestroom TrailersRestroom trailerLevelingPlacementGeneratorEvent planning

I'm setting up a four-stall restroom trailer for a weekend wedding on a rural property. The best spot for it has a very slight slope, maybe an inch or two over the trailer's length. I can't find a perfectly flat patch of ground. I usually place these on level ground for the doors to swing right and the plumbing to drain correctly. The trailer has its own jacks for leveling, but I'm not sure how much slope they can handle. A small slope feels like it might be okay, but I don't want to risk a door popping open or a toilet not flushing properly mid-event. How much slope is too much for a restroom trailer? What are the signs I should stop trying to level it and just find a different spot?

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Dave P.Madison, WI

An inch or two over the length of a four stall restroom trailer is the kind of slope the built in jacks handle all the time, so I wouldn't give up that spot. We ran one on a sloped side yard for our fall festival two years running, and the setup guy just cranked the downhill corners up and set wood pads under the jack feet so they didn't sink into the grass overnight.

After leveling, check it from the inside, not the hitch frame. Put a level on the floor in each stall. Open and close every stall door and the main door; if one drifts shut on its own or won't latch, it's still off. Flush each toilet and run each sink, and make sure nothing pools around the drains.

Signs to pick a different spot:

  • The jacks on the low side are almost out of travel
  • The trailer rocks or shifts when someone walks in
  • The steps won't sit flat on the ground
  • The soil is soft and the pads keep sinking, especially if rain is in the forecast

Soft ground caused us more grief than slope ever did. Also walk it once with the pump truck in mind and confirm the driver can still back up to the waste outlet from where it ends up parked.

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