I put my waterer as high as I can get it after they know what it looks like. Right now, I have chicks in a very large cardboard box and the waterer is about 6 inches off the floor. I make a ramp so they can get up there when they're little. The top of the jar sits right under the wire covering I have on it so nobody can get on top. Every once in a while they still manage to poop in it which I just don't get and as soon as I see it, it's gone! New water right away. I scrub the whole thing out every morning cuz it stinks! Yuk!
My chicks that are outside have two of the waterers per pen up on cinder blocks. They don't poop in theirs but every morning when I scrub them out it literally turns my stomach big time because of the slime that has formed in the red pan part. Ugh! It's all I can do NOT to add to it!
I think its happening because its so hot. I've never had waterers get as slimy as they are this year!