I was all proud of myself for making a waterer out of a big bucket, and it's served us well through the summer. Except - the water is always dirty. Two of our girls roost on top of it at night (it sits on the ground). They add to the dirt and droppings. When I clean it I try to spray off all the algae but it's not perfect. Now it occurs to me that the whole thing is gonna freeze in a few months. I'll have to go find one of those horse bowls I guess. But what do you do about poo in the water? I know it's not going to be a perfect mountain spring, but I worry about germs. We have six hens.