I assume the problem is with clumping at the bottom opening. I further assume your spreader did not come with an agitator extension. That's the first thing I'd investigate: a source for an extension that's compatible with your lower agitator. Mine looked like this. It bolts directly to the lower agitator. It should be held straight up as you load the droppings into the cone, that relieves stress on the connection when the PTO is first engaged. After that, centrifugal force and gravity eventually positions it so that the rubber wheel is running around the inside of the cone.Ordered a 650 lb spreader without thinking about the size of the Alpaca droppings.