I have four chickens in a run attached to their coop. They are now about 20 - 25 weeks old. Recently, they started knocking over their water and dumping their food. I tried haning their water but now they just push it and all the water sloshes out! Maybe I am not hanging it high enough. Little devils. LOL. Now the ground in their run is not mud but not dry and there is feed ground into it!! How do I solve this problem and how do I clean it. They have more then the recommended square footage! UGH! Thanks so much.