Yeah, I know that cleaning out those waterers is a pain. Once they grow up a bit, by the next week or so, I'll give them access to the entire brooder, which is 4x4. On the other side I have another watering system, more of a commercial style nipple system. It holds a gallon of water, and lasts about 2 days. It is adjustable for height and looks just like this one in the coop.

The coop waterer is fed by this bucket

which is fed by a gutter on the back of the coop. There are a few filters in the process to keep the water free of debris. I'll have to fill it once a week, along with the bucket waterer in the run during the summer, but from fall through spring, it should be good to go. (I'll get a heater for the bucket in winter.)

I'm giving them some basic meds, vitamins, and electrolytes for the first 2 weeks in their water. These deteriorate over time, so I'll keep doing the quart waterers until I let them have run of the entire brooder. At three weeks they'll head out into the main run with the others, as it will be mid May.

I know the meds and electrolytes are not necessary, but I have pretty healthy chickens, and everybody is off of them after 2 weeks.