Restrooms & Sinks

Featherlite specialty trailers can be completely self-containing and therefore, a restroom might be a good option. If your design includes a sink or bathroom, you'll need plumbing. Basic ingredients for plumbing are:

  • Plumbing fixtures, like sinks, faucets and toilets
  • Hot water heater
  • Three kinds of holding tanks:
    • Fresh water, for drinking water supply
    • Grey water, for sink drains
    • Black water, for human waste, toilet drain
  • Drain plumbing and dump valve(s) for grey and black water tanks
  • Water pump
  • City water hook up to access public water instead of using your fresh water holding tank.
  • Water lines to connect it all—for mobile application, water lines are typically a flexible plastic type.
  • Drain plugs or valves for fresh water tank, all fresh water low points and appliances. Also a fill point for the fresh water tank.
  • Level sensors on each holding tank and a monitor mounted inside the trailer to tell how full each tank is.

It's a good idea to design your floor plan so all of the plumbing is in the same area, so, for example, avoid having a sink on one end of the trailer and a bathroom on the other since that requires running water lines the entire length of the trailer.

If your trailer will be used for event marketing, consider whether you need that bathroom. Will the public venue have public bathrooms available, which can be used by your crew as well as your customers? If anything most would consider having the bathroom out of traffic flow and for crew use only. But Featherlite can do whatever fits your desires.

Most large trailers that have holding tanks have either 50 or 100 gallon capacity, but keep in mind that water weighs about 8 pounds per gallon. Featherlite can advise you on this.

If operating in cold weather, plumbing will have to be drained for below freezing weather in order to avoid freeze damage. This starts with a design where it can be drained easily without tools. The water lines should have low point drains. The water heater and fresh water tank should have drains plumbed to the outside of the trailer. There should be a provision for filling the lines and pump with a non-toxic RV type anti freeze without going through the fresh water holding tank. The water heater should have a bypass so the water lines can be filled with anti-freeze without having to fill up the heater. These features should be specified.

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