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💧 Fresh water and waste water/ grey water - Couple Cottage (Knaus Boxlife 600)

Fresh water

For hygienic reasons, the fresh water tank is always handed over empty. The fresh water tank (100 L) is located on the passenger side and serves the washbasin, toilet and indoor/outdoor shower. To open it, you need the medium-sized key:

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Filling up the fresh water tank works by canister with attachment or with a hose. Please make sure that the fresh water and waste water tanks are closed. They may still be open from the previous rental.

You can check the water tank level on the camper unit (the third button on the left shows the fresh water level):

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To empty=open or close the fresh water tank, you have to lift a cover in the cupboard between the kitchen and the bed. The cover you are looking for is on the side closest to the bed:

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Attention: Fresh water is not drinking water

Waste water

Before returning the Couple Cottage, the waste water must be emptied.

You can check the level of the water tank on the camper unit (the third button on the left shows the grey water level).

The waste water tank (90L) of the Couple Cottage is located under the camper on the left side of the vehicle. To empty it, move the grey lever down:

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Click here to go directly to the explanatory video:

Troubleshooting

Water leaks under the car

If water leaks under the car even though everything is closed, it is possible that a valve is still open:

  1. Make sure that the fresh water tank drain is closed.
  2. Make sure that the drain of the waste water tank is closed.
  3. Check the valves under the floor near the kitchen:

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  4. Check if the cold protection valve is closed. It is located under the seat in the passenger area. Lift the seat cushion:
    Cold_protection_valve_marked.jpg

The cold protection (or anti freeze) valve automatically drains the boiler when there is a risk of frost. This prevents the drain from freezing. 

The system measures the temperature inside the van. As soon as it is around 3 degrees or lower the system is activated and lets all the water that was in the boiler and the fresh water tank out. To deactivate the system, the room temperature has to be a least 7 degrees, otherwise the blue button will jump out again.

To ensure that the water supply continues to function and the valve is switched on, the blue lever must be turned clockwise and then the blue button must be pressed in.

 

No water flows

If you turn on the tap but no water flows, this can be due to several reasons:

  • First check the fill level on the on-board unit to see if the fresh water tank is full enough.

    There should be at least 20 liters of water in the fresh water tank so that the pump is completely covered with water and filled so that it automatically unlocks after running dry!

  • Make sure that the camper unit (screen above the sliding door) and the water pump (water tap symbol on the right of the screen) are switched on.
  • The fuse of the water pump or the tank sensors may be damaged.

Before any fuse is pulled, following safety measures is required:

  1. Turn off the engine and remove the key from the contact.
  2. Unplug the car from any external power supply.
  3. Pull carefully on the fuse by pulling from the sides.
  4. A damaged fuse can be burnt or have the connector broken (see picture). If so, please replace it. You can find them at petrol stations and hardware stores. 

The fuse box is in the boot, under a cover above the cupboard closest to the bathroom. The fuse you are looking for is the second from the left, 10A (red on the picture):

 

Water pump won't stop running

If you hear the water pump humming even though no tap is open, check the following:

  • Are all the taps closed properly? Sometimes they are still a little open and this causes the pump to run even if no water comes out.
  • It may be that a micro-sensor on the tap has become wet and therefore does not recognize that the pump should stop working. Wait until it is dry or try drying the area with a hair dryer.
  • Turn off the main battery switch for a while until the system resets itself.

If the water pump does not activate when you turn on the tap (ATTENTION only for vehicles without a separate water pump button), the micro-switch on the tap lever is probably defective.

To still put the water pump in the ready state, follow these steps:

  1. Test the other tap (e.g. kitchen or bathroom).
  2. If another tap works, open it just a little so that you can hear the water pump, but no water flows.
  3. Now open the tap with the defective micro switch. The water should now run.

Attention: Don't forget to close both taps completely afterwards!

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