Self-Propelled Compost Turner
https://www.youtube.com/watch?v=junWmjS_Fho After doing a few slow-moving donuts, this compost turner gets down to business. I found this channel Fertilizer Machinery recently, so I'm going to put a few videos up. Due to the volume of material, I guess it isn't feasible to build huge piles and let them sit without introducing the heavy equipment- yet another reason to do it at home by hand.