My chicks are 4 days old. I have both an open waterer and horizontal nipple waterer. Started with nipples only, but was concerned a couple of the small chicks would not be able to use it. I will remove the open waterer when I think they’re all able to drink to satisfaction. I also know they say to remove other sources of water when introducing nipple system, but some use nipples and some (most) use open waterer. Good luck, I’m sure you’ll get it right!Good morning! I'm getting ready to set up a new chick brooder and was looking at ideas on a brooder thread I found here. He used water nipples in a gravity fed system. My question is, how hard is it to train new babies to use them! I would also love it if anyone has any other suggestions. This is a great site! Thank you!