The vehicle must have a large enough water reserve tank (or provide circuit transmissions to a water source) and a fully functional delivery system. The system will consist of a water tank, a pump that works when the caravan is parked away from a power connection, appliances, proper plumbing that feeds each appliance and a sewer system that accepts, stores and allows the disposal of waste. Putting a pipe system in a caravan is a complex but rewarding project.
- Decide on a water tank that suits your purposes. The size will be a compromise between the amount of water you will store and the amount of space you will occupy. The tank should be low on the vehicle – as close to the center of the chassis as possible. And in a place where the hoses can be run to and from without serious inconvenience
- Decide on a pump that works when the caravan is parked away from a power connection. The pump should run on 12 volt electricity and be of the “demand” type, which means that it should turn on automatically when it detects that the pressure in the system is reduced, such as when a faucet is open, and then it will turn off again when the pressure returns to its adjustment value. Place the pump near the water tank, and fit it with a one-way valve to prevent water from entering the storage tank and causing it to overflow.
- Decide on the necessary appliances so that you can fully enjoy your caravan. A typical system consists of sinks, both in the kitchen and the bathroom, a toilet and a bath / shower. Many campers also include a propane gas water heater as fuel.
- Draft a plumbing installation plan that feeds hot or cold water on all appliances. Consult the manufacturer’s information supplied with the water tank and all appliances, and buy pipe that will convey an adequate volume of water for each. Normally, appliance accessories will be 5/8-inch. If so, buy the 5/8-inch hose rated for drinking water. You will also have enough clamps to complete your project.
- Draft a sewer installation plan that accepts, stores and wastewater routes. All appliances must drain into a piping system installed the same as any home system, but the storage tanks under the vehicle are unique to the requirements of a caravan. You will need a gray water tank to hold waste from sinks and showers, and a black water tank to hold toilet waste. Place the black tank of water immediately below the location of the toilet, so that the outlet flow of the toilet can be connected directly to the tank inlet. Both tanks must also have a method of transferring waste was held in a dumping center.
- Plan two water entries. One will accept water from an unattached hose and the funnel down into the storage tank without pressure, that water is pressurized by the on-board pump. The other inlet should be the type to which a pressure hose can be connected so that the camper’s plumbing system is pressurized by the main one. It is called a “water” entry, it must have a pressure regulator for the pressure of the main one is not entered in the caravan plumbing.
- Place of the water entrance city in the quadrant of the rear driver’s side. Situation with the rest of hook-ups to connect to the campsites is convenient. Do not mount directly over the load area, where the shore power cord is maintained. You must have a potable-rated water hose to connect this accessory to the city’s water supply.