[RMcNeal]

Thanks Daryles. I got that one some time ago. It does show the color wire to each tank (blue for the fresh water tank), but not the individual sensor wires for the 1/3, 2/3 and full sensors that are bundled at the tank itself. As I understand it, a white wire is used for common at or near the bottom of the tank, then three other colors go to each sensor at the 1/3, 2/3 and full positions. They are bundled with a sending unit then a single wire feeds the panel inside the coach to light up the red led's on the panel at the appropriate depth 1/3, 2/3 or full.