My skimmer keeps overflowing and I would like to add a level sensor to the skimmer cup, but I don't want to drill a bigger hole to fit the standard plug through. Could I cut and reconnect the cable towards the dry end by the controller so I can thread it through? I have a spare float valve. Is it just 2 wires +\-? If wired in correct polarity are ther any issues e.g. Resistance?