Mine finally got full also. I'm going up tonight to see how much it's dropped. I hope not much. Please let me know what your contractor says and does. Hope you get it stopped.
9 yr old pond, 1 ac, 15' deep. RES, YP, GS, FHM (no longer), HBG (going away), SMB, and HSB (only one seen in 5 yrs) Restocked HSB (2020) Have seen one of these. I think that's about all I should put in my little pond. Otter attack in 2023