Camper water calibration

I can’t answer your question but suggest an internet search as I’ve seen it asked elsewhere. If it is a Sargent system, you could try ringing them.

Sometimes its worth searching for Elddis Motorhome Facebook groups as they often have such details. I belong to a Bailey group and water tank calibration is included in the file section.

David 

after four and a half years of accurate water display (without ever cleaning or calibrating any measuring 'equipment'), i really do wonder what makes it so difficult to produce something that can do this simple task properly.

...can anyone (perhaps Dk) explain why there is a need to 'calibrate' these things...a stud/rod/float that idicates 'half' can only do just that, cant it?

Not had our MH long. I had no idea they could be calibrated. Ours just seems to work. When the tank is full it shows 100 on the bars, when at its 20 litre traveling reserve it shows 0 and a flashing triangle.

I am afraid I can't help the OP on the calibration, but I would have though as with ours, when the bars were full, lite up in our case, it would show water present, when empty or dark, water absent. Ours certainly needs the 12 volt circuit to be switched on to operate, otherwise it just remains dark.

I wish I could calibrate the fuel gauge on my car to show full for longer ...😂 

You could make it show full indefinitely ........ but you wouldn't get any further on a tank 

My first Land Rover did not have a gauge for the fuel tank.  One unscrewed the filler cap from the top and looked inside. If one wanted to be "accurate", a stick with some marks could be used.  Still did very few miles to the gallon.

...can anyone (perhaps Dk) explain why there is a need to 'calibrate' these things...a stud/rod/float that idicates 'half' can only do just that, cant it?

It will depend on what sort of control panel you have. Some of these panels can be fooled into thinking that a tank is full when its only half full. When I first had a motorhome and we got to the first service I had left the tank half full. What ever they did at the service reset the water value as full even though I could clearly see that the actual tank was only half full. I then discovered that it was possible to go into factory settings and change things. So what I did was the empty the tank, go into the settings and reset the tank as zero. I was then able to refill the tank to full and the control panel show an accurate 100% water level. I have no idea what sensors are in the tank and how they work, all I know is that on that Bailey motorhome they could be reset. It's probably the same for Elddis?

David