I have been using a 4 gallon plastic waterer for about 4 months now. I'm not totally satisfied with it. My chickens get dirt and poop in the bottom tray, and a few bugs have gotten inside somehow. I do clean it, and sometimes I add a little apple cider vinegar to the water, but it seems a little slimy. I just would like a cleaner option. So, today I got a 2 gallon galvanized steel waterer. I have been washing it out with a mild soap and hot water like the directions say, but it still seems there is a metallic odor that won't come out. I'm going to let it soak in water for a while and maybe the odor will go away eventually. I'm just wondering if anyone has thoughts on these, and if there is a better option out there? Thanks!