I have an infinity edge pool which is right next to the marsh and unfortunately we have a lot of raccoons. I strongly suspect the racoons from the marsh are coming to the trough to drink water as there are little foot prints and mud/sand collecting at each edge. I was wondering if anyone has heard of a very small automatic cleaner to place in the trough to run like the larger auto cleaner does in the main area of the pool. Or any other suggestion? Covering the trough is not an option... Id rather deal with the dirt. Thank you!