Hello again Neil,
This is how my fresh water tank is set up...It's the small box on top that I have the issue with...
Ive just put any of the 3 wires wire on any of the 3 terminals so they're not necessarily in the right place...although they might be!
Would you be good enough to look at your tank (assuming it's in the same place) and on the top there's a small 2 inch square box with three different wires coming off it. It's the sensor I think.
It has positive and negative and one in the middle...I dont know which wire goes where and I didnt want to guess and blow the unit. All this is assuming yours is the same.
I was wondering and hoping that you might be able to help me out...
I took the water tank out of the back of my camper from under the bed.
Stupidly, I forgot to take images before unclipping the wires that are attached.