we have four babies they will be 5 weeks old tomorrow, at night they stay inside in their brooder box and EVERY morning they have spilt their water and it is everywhere! The waterer is never knocked over so im not sure how they are doing it, it doesn't leak, we use the same waterer in their outdoor daytime play pen and it is fine all day. Any suggestions on how to get them to stop knocking the water everywhere??? This is the kind of waterer that we have. TIA!!