
It would be also nice to have some information about the weather station providing the data. Is this a general OpenSprinkler firmware or app issue, if the Zimmerman weather algorithm is based on OWM? There is also no weather logo visible at the App’s front page. I always get the message that an API key will be needed, if I click on the Weather Diagnostics button.

It is strange that there is no possibility to see the weather data used for the Zimmerman calculation anymore. I think the weather algorithm is working in some way, but I still can’t see if there is any precipitation value from yesterday’s rainfall measurement included.

For the time being we have had a sunny day and the water level was hourly updated to 72% during the day. Following the information above, I have deleted the WU key in order to use the OWM data for the Zimmerman weather algorithm.
