I can't seem to find an unequivocal yes or no to placing the nipples horizontally. As this is for meat chickens I don't want to set up PVC, I would rather just stick them in a bucket to hang in their tractor. Since the tractor is rather low, I would like to insert the nipples around the bottom perimeter of the bucket rather than directly in the bottom of the bucket. So what is the consensus of the group before I drill the heck out of a bucket? Thanks, Ali **** Edited to add - For the buckets, I got the food grade 3 gallon buckets for free from my local grocery store's bakery. They get their fillings in them. I hate it when I read people are buying buckets at the hardware store because most can find them for free locally and hardware buckets are not food grade.