I know there is a very funny post going about how dirty our ducks can be, but I was wondering if anyone has figured out how to keep their pools somewhat cleaner. We change the water in their pool every other day, but now wondering if it should be a daily chore. We do add water daily until it's full so that they can swim, but on the second day that water is just plain brown. I really can't stand watching them swim around in icky brown water. It's just it will take soooo much water to empty out their pool and refill it daily. Is there any other way? I was wondering if maybe adding rocks to the bottom might help keep the ickys down some. Has anyone tried this? What are some ideas you can share? All suggestions are welcome.