Automatic Chicken Waterer Cups,10 Pack Large Chicken Water Feeder, Universal Tee Fittings Poultry Feeder Cups Suitable for Chicken, Duck, Goose, Turkey with Mounting Hole Opener

I have a kiddie pool that's cleaned out every second to third day or so. It gets nasty really fast. It's just ducks. They also have a five gallon water bucket with little cups that automatically fill. Go to a hardware store and buy a bucket. Then buy these watering cups or something like them https://www.amazon.com/Automatic-Universal-Fittings-Suitable-Mounting/dp/B0DYJGSWQL I bought only four at first but sometimes they break. Having a few extra on hand is helpful. They will have fresh water.