So I sourced some cheap motorized ball valves and installed one the other night. Its just mounted temporarily at the moment (hence the cable tie). It comes with a motor connection in which the user changes the polarity dependent on direction. Opened/Closed feedback is via contacts that sink to ground.
I hacked the old code from the original three-way valve and we were away. Its not that exciting so I didn't take a video.
|The new 3-way Motorized Ball-valve|