I'm getting my first ever chicks in august after we all settle in from vacations. I can't WAIT!! I have my brooder and coop but need some important extras I'd like to use the nipple system for water. I will be the proud momma of 2-3 chickens max. I say 2, DH says 3. How many nipples do I need? And what sized jug should I use? How long will a gallon jug last? Based on my coop set-up where would you place the nipple? Inside or outside the coop - or should I have both? If it matters, I live in Southern NJ, 90 minutes from Cape May. THANKS!!