Pump
To begin, review your work order to see which service is required. A “pump” means you’ll only empty the waste tank, while a “pump and fill” means you’ll empty the waste tank and refill the fresh water. The work order will also list the trailer number—double-check that the number on the trailer matches your paperwork, especially if there are multiple trailers onsite.
Once confirmed, unwind the hose and locate the trailer’s dump valve. On smaller trailers, you’ll typically find it up front, while larger or older models may have it at the back or sides. For combo or ADA trailers, keep an eye out for multiple dump valves.
Next we’ll remove the cap, then secure your hose to the 2-inch cam lock. Just a reminder: We don’t typically keep extra fittings inside the trailer—they’re either already attached or need to be brought along in your truck. Always plan ahead and double-check what you need before you roll out!
With the truck’s PTO engaged, connect the hose to the trailer dump valve. Then open the valve by lifting the gate handle or turning the ball valve parallel to the hose. The waste will then drain quickly from the trailer’s tank.
When the hose begins to wiggle, it’s a sign your tank is almost empty. However, a bouncing hose could also mean there’s a blockage in the -dump valve. To be sure the tank is empty, step inside the trailer, press the toilet’s foot pedal, and look down to confirm the tank is truly empty.
When the tank is empty, keep the PTO running and the valve open. Carefully disconnect the hose, holding it under the valve to catch any leftover waste. Once the line is clear, close and recap the valve.
Now, let's get ready to head inside. First, we’ll reattach the wand, enterthe trailer, and pump out each toilet with precision. Step firmly on the foot pedal and drive the wand straight into the toilet opening to blast away any solids below. If there’s a spill—act fast and wipe it up immediately.
This commonly overlooked step removes hidden waste trapped beneath each ball valve—causing unpleasant odors, messy overflows, and toilet backups long before the tank is full. Once you’ve pumped each stall, your pumping mission is complete. Roll up the hose, stash the wand, and proceed to the next step if you’re required to perform a fill.
Fill
With pumping complete, we'll check the work order to see if we need to fill the onboard freshwater tank. If yes, we’ll find the service door on the side of the trailer—usually opposite the entrance. Inside, look for the fill line hose attached to the top of the freshwater tank. For Regal 4 trailers with rectangular tanks, filling is a little different. Simply pop the fill cap on top and you’re good to go.
Regal 2 trailers work a little differently as they don’t always have a service compartment door. Instead, they’ll have a tank fill line on the outside of the trailer. To fill, connect your truck’s hose to the trailer using a garden hose camlock attachment. If you don’t have the attachment, try to insert the hose directly into the top of the trailer’s water tank.
If your truck has a larger one and a half inch water hose, never connect that type of hose directly to the trailer’s fill port—the hose’s weight can damage the valve. Always use a garden hose attachment instead. To fill, attach your truck’s hose to a reducer, connect a 4’ garden hose, and then hook it up to the trailer. Once attached, open the valves and fill the tank.
Always keep an eye on the tank while it fills—no multitasking! Look away, and you risk flooding the inside of the trailer causing pricey, even permanent, trailer damage. Once full, shut the hose and fill line valves, and recap the tank if needed.
Prime:
With the waste tank pumped and freshwater tank full, it’s time to add tank additives—keeping things fresh for the next round of users.
Add 1 blue packet per stall for small trailers (like Regals) and 2 per stall for large ones (like a Bluestar or Cottage). For example, a 5-toilet 2-urinal Bluestar restroom trailer needs 14 packets. Always flush packets down toilets—never use sinks or urinals. You should also NEVER use liquid blue inside a restroom trailer as it is extremely messy and stains EVERYTHING. If you’re without packets, skip blue entirely.
Once you’ve added blue packets to each toilet, flush every toilet and urinal. Let each sink run for 5–10 seconds. This refills the P-Traps you recently drained when pumping the waste tank, restoring the odor shield between tank and trailer. Skip this step, and you’ll be fielding some smelly complaints later!
Restock:
The last step now is to restock the trailer with soap, paper towels (in dispensers), and toilet paper (under the sink)—no piles by the sink! Pour soap carefully and clean up any spills. Never use cabana spray and If janitorial service is required, sweep the floors, empty trash, and wipe down countertops, toilets, handles, faucets, and foot pedals.
Inspect
Once you’ve pumped, filled, primed, and restocked the trailer, do a quick check—inspect lights, railings, locks, and toilet seats for any loose parts. Fix any minor issues with your tools; for bigger problems, contact dispatch to request a trailer technician. After finishing the service, update your work order with any helpful notes, like overuse or authorization numbers, to make future cleanings easier. Before you leave, sign and date the service sticker inside the compartment door, or add one if it’s missing. This shows the customer the job is complete.