I'm just starting my first flock (they're just over a month old), and so far I've fed them their fermented food in the plastic chick trough feeder I originally bought for them - with the top removed, now that their heads are bigger. Now I'm thinking about what to get to give them their fermented food in once they're big birds living in the coop. I've seen some pretty nifty designs people have done, like sections of PVC pipe or gutter. But I'm worried about the chemicals that might leech from the PVC into their food, and then into their eggs. I've so carefully fed them non-GMO organic food! The aluminum gutter I looked at seemed like it had a coating on it, so that worries me too. Thoughts?