No different hookup to the controller than any other float sensor. I have 2 others for min and max sump water level... Too high and I shutoff the ATO power port (just in case it got confused on) and also shutoff the skimmer so it doesn't go too crazy with the increased water level. Too low (super too low) and it shuts off the two return pumps and the one heater in that section (to ensure it doesn't overheat while dry).
Picture of the float in the skim cup: And no, it hasn't been affected -- running like this for 5 months now - got sick of over flows, and got off my lazy but
. I clean it every month when I take the skimmer cup off for a neck cleaning, and I test it at least every week. (I just lift it up like I did for this picture, and make sure it's super easy to lift up -- and that the skimmer shuts off... has never failed once)
