To make a long story very short - and if you want the long version please read this: https://www.backyardchickens.com/t/...e-the-nipple-water-drinkers/100#post_10044836 I just installed watering nipples on my 5 gallon bucket designed to be mounted horizontally. They work great! And, because they are spring loaded, no leaks. I'm trying to gauge from the BYC community whether this nipple would be something they'd be interested in. I'm planning on making a large purchase (1000+). Any comments?