Update, the valve joined up perfectly. It joined as a Device, obviously no driver exists for it yet. I switched to the Sinope water valve Driver and I can operate it. Battery is reading 100%, and open and close works. Maybe lots of information below to make it fully functional / develop a driver for it @mike.maxwell
Update 2, a few attributes are being skipped with the Sinope Water Valve driver, as expected. I would assume one of these are for the water flow. You can see the value increasing as the time goes on with the valve open
