I used a smart water bottle with one nipple in the lid on my chicks at 2 days old. Worked like a champ, they are now 3 months old and I have one nipple into the bottom of a 1 gallon bucket (with 5 birds) and only fill it once a week, I could probably go 2 weeks but I like to keep the water fresh. Also words for thought. Go to the hardware store and buy an 1/8" female thread brass compression fitting.
But besides that you can teach them from day one by tapping it with your finger until there is a bead of water on it, they will see it very quickly keep the shallow bowl in their brooder though until you are sure they have figured out how to use it, normally once one starts it the rest follow (in my experience). Just make sure you don't have too much down pressure on the nipple part otherwise the little chicks wont be able to push it.