Ok putting together my first rig. It will be a HERMS system that I plan on fully automating. Four vessels keggle hlt, 5 gallon heat exchanger, keggle mash tun and keggle bk. All hard plumed all run off 1 pump. Hlt and bk gas fired and heat exchanger electric 220. Obviously lots of electronic valves involved, anyone have suggestions on where to source the valves?