Horizontal or Vertical Nipples @UncleDako ?I use nipple waterer for chicks straight from the hatchery with no problem. When I get them out of the shipping crate first thing I do one at at time is get their beaks to poke the nipple. Never had an issue. (of course I there is occasionally one or two lost birds the first week but doubt that was lack of water just normal attrition after the shipping journey.)