We are using a kitty litter bucket with nipple waterers for our 22 hens/pullets so their water is clean all the time. I use recycled plastic bottles for ice containers; just drop them into the bucket...late in the day I remove them...rinse them off and refreeze for the next day. If the bucket needs water, I use the water from the bottles. They really enjoy the cool water. I see no need to scrub the bucket every day.