Chickens love to wade in water that they can just step into, they seem to dislike water that they have to jump down into, after all they do not know the depth of what they are jumping into. I've never had any luck getting mine to use a kidde pool. Shallow pans, anything they can just walk into, or even just puddles on the ground and they wade right in. There is a low spot in my open goat barn and when it's really hot I make a big puddle and put the fan on it, They wade right in and park in front of the fan whenever they feel the need to cool off.
