How funny. This same thing just happened to me yesterday. I kept getting phone calls about the water detection. I would answer the call but they continued.
My base station is doing the same thing. Even though I turned off water detection at this time, the blue light on base station is flashing and repeats mesage about water detected.
Looks like water sensor has settings in the app for announcing alert every 10 minutes but it’s off.
How do I get base station to stop flashing blue and stop the alert announcement?