Ultrasonic Chipmunk Repeller - Solar Powered - Flashing Light

I honestly didn’t have much faith in in fact that it was going to work. However, it does. I was having issues with chipmunks, digging into my drainfield on my sand bound for my septic. So I would fill it in with sand and they would dig it out and no matter what I try they seem to just keep digging holes wherever I will fill it in. Last time I filled in all the holes sprinkled it with cayenne powder, and then when I put in this device, I have not seen any chipmunks and it’s been two weeks and counting.

Its not working to stop them from digging tunnels in my garden. I feel I just wasted my money

There are a lot less squirrels and chipmunks in the area since I put this outside.