To fill the Fresh water tank, take a garden hose, or other source of water and you put it into the fresh water fill tube and fill until your tank is full.
If not already done, open the hot and cold water lines and close the bypass valve that leads to the hot water tank.
**This should already be done unless the camper needs dewinterized.
You can find these valves under the bed/seating boards that are under the cushions, on the drive's side of the camper.
The hot water tank will fill up as the water lines are filling in the camper.
Leave open all faucets, including the outdoor shower faucets.
Turn on the water pump.
After some time has passed, you will start to get a steady flow of water from one faucet to another, as the stream becomes steady, you can turn that faucet off.
Once all the faucets have a steady stream, you can turn them all off, and your system is now pressurized.
Your water pump should turn on as the demand for pressure calls for it.
If you are not going to use the system for a while, I suggest turning the pump off.
If you run out of water, turn the pump off.
If the pump runs for too long with no water going through, it can damage the pump.
**Expert tip: Filling your water lines and hot water heater uses about 7 gallons of water.
To make the most out of what you have, go back and top off your fresh tank with that 7 gallons of water so you have a little extra supply on hand.