The system remembers the last duration of the instant manual run and displays that on the home page. So the 5 min watering will not be saved after restarting the app.
We will soon release the new version of the app and in this new version, the default watering duration is 00:00.
So I can't water manually longer then 1 or 5 mins at this point?
You can water manually longer than 5 mins. For example, you can adjust the waterng duration to 10 mins and click the blue play button to start manual watering.