Hello, I have 5 hens about 23 weeks now. My problem is that I have a plastic waterer with a red bottom. We have (until now) raised it a bit with an upside down pan. One of the hens is aggresive and knocks it over all the time spilling it all over the coop. My husband hung it and it is worse now. The coop is drenched. I think its a little low. I need to raise it? What level should it be in regards to chicken height? Do I need to buy another waterer? Any advice?