I am attempting to take a waste tank that I have placed two float switches and a pump in (1 high switch and 1 low) and empty the tank automatically when the water level reaches the top float switch. Currently the float switches activate when they reach 45 deg. However if I just make a circuit this way the top switch will never activate and the bottom switch will always be running the pump. I know there is a way to use a switch/controller to handle the logic of making sure the bottom switch does not activate until the top switch has been set off. I am just needing help pinning down what type of logic switch or controller would accomplish this. Any direction or help on this would be appreciated!