same old story. i just want to fix for my own satisfaction. they never work and everyone says the same. well, my fresh water tank always says full. tried everything with wires etc. so last nite i pulled all the wires off the tank and even then it says full. so simply, is it the monitor board or is it the wiring that somehow is all connected and the other wiring from the other tanks is giving a false reading to the fresh water tank. all the wires seem to be connected together along the line. any help? thanks