I have a water tank that I want to fill up with a well. I have a float switch at the top of the tank and another float switch in the middle of the tank. What I want to do is have the pump only turn on when the middle tank switch opens and to keep pumping until the top switch closes.
This is trivial with a microcontroller but I feel there must be a way to do this with solid-state components. I can convert logic-level to what is needed to drive my contactor - I just need to get the actual logic circuit sorted out. I feel I'm missing something obvious and would appreciate any guidance. Thanks!