Becky, I like your approach or thoughts to this grey water thing. I was thinking of having my grey water go into one of those 5 gal blue containers. And for the beginning of my camping time while I develop my final designs for the finished trailer, I was going to use the blue containers for grey water and another one or two for drinking water. Now with your recommendation to use a yellow jug, I see the wisdom in that. For one thing, there is less of a chance to mix up the containers if there is a color difference. Or I could just paint the grey water a different color.