Anyone with experience with this unit. I am trying to set it up to have both sensors in the sump; one set to the "minimum" level and one set to the "max" water level. I can't seem to get this to work. Are both sensors supposed to be facing the same up/down direction, or should one sensor be inverted. Presently, the sensor that is suppose to measure the minimum level turns on the pump and shuts it off as soon as water is replenished. The second sensor has no chance to shut of the pump. I know this may not be clear, but neither am I with what is going on here. JBJ's website and brief instruction chart is of little use. Anybody???