New reactor design for bio pellets reactor

[Coleus]

here is link to mine http://www.youtube.com/embed/UaEi5WkkMUg

I think the tumbling is ok but eventually it will clog because of the mulms. I am using MJ1200 pump right now but if i put a higher pump, the pellets get tossed to the top and clog right there or passed through the screen.