After my mods this year I had no problems with feeding. The exception being after several days of rain delay I had a couple of tubes draw moisture and plugged at the manifold. couple smacks with the rubber mallet and they were flowing again. Last year I had trouble with large bean seed, cutting the slots a little larger has solved that problem.

Most of the fittings and such came from Lowes. I bought the 6 inch fan from Crary. I got the delivery hoses online from Ihoz. The tubing for the slots is 1 1/4 EMT conduit.

A few more pics.

The boxes are just cut down 7000 boxes. The lids would be the hardest part to come by. I have a friend that works in a pressure forming plastics plant. We made the mold and he punched them out. If I go to a larger bar I probably going to try and find either the new CCS type mini hoppers or those off of a 1535 Drill.