I also read that if you put a ping pong ball it’ll work too, but I thought that might be dangerous with ducks, and Chris thought that was due to the movement
I read online that if you put 1/2 cup of regular salt in a plastic water bottle...seal with duct tape...at least I did...and float it in the water. It’s because salt water doesn’t freeze. I didn’t believe it and neither did my hubby. I have two in my two big under the bed totes for the...