We put our chicks outside at 1 week, they are now 3 weeks old and a problem we had was the waterer would get dirty and clogged. Our solution was to use a catfood can. It is attached to the coop frame with a drywall screw. Now the water stays clean and is easy to refill through the chicken wire. I'm sure someone has mentioned this before since it's so easy but I thought I'd add it anyway.