I use this IC for detecting water presence in a pit. It's wastewater. There is everything, but not clear water. Wires are some 15m long, so there is some resistance. Now, the problem is not if I put the end of the wires in water, the problem is when I put that end in that filthy water. Not much conductivity in it.
If I connect the output of the IC line back to another input? Should it increase the output?