Did you contact the breeder to ask how they administer water? There is a lady up here that breeds chameleons that actually waters them through a little bubble water machine in the base of the cage. She was at a local show. Of course, there were several chameleons in the cage, and excrement and urates in the water bubbler. Very odd method. And didn't want to hear anything about it. And, yes, her chameleons have parasites and other health problems. Go figure.
You did get some chams from us, but not Doodlebug. Hopefully the guys you got from us are doing well. Their clutchmates here all drink heartily.
What were the signs of dehydration? The urates, the eyes, or tenting skin, or all 3?