I would like to know how everyone keeps there trough clean? We have I think it is a 50-gal trough we have sheep and goats, the chickens also jump up and drink out of it. Well I noticed it was getting dirty looking, so I dumped it out and cleaned it out. Yuck It was kind of gross, it turned quick the weather has been getting warmer so I wonder if that is why it seemed to get merky so quick. How do all of you keep them nice and clean??Or do you just have to clean the out more often??