This happened to me. Mine were without water for 4 days. (I was gone and had someone coming by every 3 days) I figured out the problem. I have a 3 gallon nipple style container. So, because the lid was put on tight it stopped the water from coming out of the nipples. After I fixed the problem my chickens drank water non-stop for about 15 minutes. WHO KNEW.... So upsetting! My chickens are molting also. They hardly come out. The hardly drink or eat . It has been a month since this happened. I put electrolytes in their water and gave them watermelon and worms (their favorite) Do you think they will make it? Of course no eggs.