Does anybody know how to wire a latching with fail-safe switch on an auto top off connected to a low voltage relay. I can get 3 float sensors off of ebay, and a low voltage relay with 12vdc adapter. I just don't have a clue how to wire it to make it work. I've looked online for tutorials, but nothing this complex. It might not be worth the $50.00 saving to do it myself. Any help would be appreciated -thanks.