Hi, I have 6 hens, a year old in New England. I just switched from my heated waterer (which has an open trough) to a homemade one which they have to peck to get water. They used it last summer just fine. I put it out last week and refilled it once. 2 days after refilling it I noticed the level hadn't gone down, also their laying abruptly dropped off. When the girls fell all over themselves trying to get a bucket of muddy water my preschooler was carrying around I thought I'd better check to see if it was working. (It's fine.) The moment I touched it all six descended upon it as though they'd forgotten it existed and spent the next 5 minutes guzzling water. ??? They obviously know how to use it. I don't want to buy a new one and it's not practical to use the heated one through summer. Will they figure this out? There were no eggs at all today.