One of the fun aspects of automation is designing your valves and flow diagrams. I would like to start a thread should valve layouts and system designs. If you have any to contribute please do so. All that I will post are references to ones I have found online. I am currently in design phase of my own system just gathering parts.
http://www.brewtroller.com/downloads/btbrew.pdf



http://www.brewtroller.com/downloads/btbrew.pdf