I'm gone for 11 hours on weekdays, so I have a large rubber tub in a shady area of the run, with about an inch or so of water in it. The flock also has a 5 gallon cup waterer available. And I've been giving them chunks of frozen watermelon at dinnertime, yummy.We give ours electrolytes in their water when it is hot, refresh the water multiple times a day and wet the ground so that it is cooling as it evaporates.