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Restroom Trailer Instructions


  • Do not move the trailer
  • Do not open or close any valves
  • Stairs should remain out and railing out for duration of the event
  • Only toilet paper down the toilets
  • Only use trailer for the capacity provided
  • Leave fans and vents open to create circulation

Preparing the Trailer

  • Access the restroom trailer key in the small, round container mounted on the trailer hitch.  See picture.
  • Unlock exterior doors.
  • Unlock the control panel located in the back of the trailer.

Note: For 2 stall restroom trailers: The control panel is in the stall to the rear of the trailer (the side with the trailer hitch is the front).  

The Control Panel

  • Turn on power: turn red dial to the right
  • Turn on light switches – identified by the red sticker
  • Turn on pumps: 2 switches – identified by the yellow & green stickers
  • Turn on fans – identified by the pink sticker
  • Turn on water:
    • If connected to city water: open valve
    • 4 stall: 2 pumps
  • Turn on air-conditioning (if applicable)
    • Thermostat set to 70 degrees
    • Allow up to 90 minutes to get to temp
  • Turn on radio, set desired station
  • Open vent in each stall

At the End of the Event

  • Remove your belongings from the trailer
  • Turn off water; in trailer and at source
  • Turn off lights: XXX color
  • Turn off A/C
  • Turn off radio
  • Turn off power
  • Lock trailer
  • Return key to the lock box (The lock box is a circle container mounted on the trailer hitch on the front of the trailer)

Troubleshooting Tips

Electrical Troubleshooting Tips

The trailer required 20 amps to operate.

  • Make sure electrical is plugged in at source and at the trailer.
  • The yellow plug needs to be screwed in completely
  • If continuing to blow fuse, the outlet won’t supply enough amps. Switch plug to a different outlet.

Water Troubleshooting Tips

  • Make sure water is on at the source, city water or tank, and at the trailer.

              (water fill would be different)

  • Pump switches in on position

A/C Troubleshooting Tips

  • Check the thermostat, make sure it is set to air conditioning, not heat
  • Make sure the trailer is set to 70 degrees
    • Caution: Will freeze if set below
  • Allow up to 90 minutes for the air to get to temperature
  • Make sure vents are open on the interior


  • If water is running in the toilet, lift up the handle to stop the water from running.
  • Foot pedal only requires light pressure to work.

Occupancy Lights

  • Lights will only illuminate when the door is locked from the inside (photo of occupancy light)
25 Republic Rd.
North Billerica, MA 01862
567 Winthrop St.
Rehoboth, MA 02769
24 Hr Disaster Response
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