If you have removed your CloudRain Valve in the App and would like to reconnect it, you have to reset the Valve by pressing a button.
The valve must be flashing red so the CloudRain Controller can find it. To do this while the valve is on, press and hold the button on the valve for about 10 seconds. The LED first lights up red, goes out briefly and then lights up yellowish. As soon as the LED lights up yellowish, release the button. The valve should then flash red again and can now be found by the controller.