Took an old milk crate. Cut the top part off where its got the mesh look (used sawz-all with steel blade) and cut out a notch for the water spout. Used a cheap tie down strap (not the ratcheting kind, just pull it and push the lever to release). Welded an extra supporting bracket to the trailer frame to support the inside edge of the crate bottom. The other side of the crate bottom sits on the trailer rail. Hit it up with some black spray paint. You can get creative and do it to suit your own setup and needs but this worked great for me, was very easy and cheap and didn't take long at all. I already had all the ingredients.