I'm very new to all of this but I've drawn up a very simple 3 vessel automated system based on JonW's rig. His design is really simple and clean. Mine would be electric.
The systems I've seen seem to use way more valves so I feel like I'm missing something. The drawing below would use three 3-way stainless valves and one H20 valve. I'm drawn towards using a BCS-460 because of simplicity and ability to monitor it from my iphone.
A few ideas that I would like to implement but I haven't seen it used in someone's system:
1. Sight Glass Level Sensors - 1 per vessel
2. Liquid/Flow sensors - to protect pumps/elements from running dry. Or stuck sparge sensing? Not completely sure what the abilities are of this sensor.