@franzstein , your last sentence interests me as I thought the might/day cycles had been materially resolved. Have you been seeing this in the last week ? And do you mean that you see a consistent reduction in water level as you enter evening and a consistent increase over the morning ? If you are happy to let me know your rough location (lat/long to one decimal ~ 10 miles and zimmerman parameters) then I can setup some OWM logging to see the impact.