Do you use a pipeline or individual bottles/buckets with nipples? Do you silicone them in? We're still working on ours...threaded into PVC with Teflon plumbing tape they are leaking like crazy so still using the founts until we get it figured out. (If there is a better thread for this I'm happy to move over.)
Single bucket. For the hens, I just drilled holes in the bottom of a 5-gal. bucket and pushed the nipples in. They leak a little occasionally, but not near enough to outweigh that I don't have to worry about the water for days, and there's never litter or poop in the water! The chicks will just have a smaller version.