In the fall we added about 6-8 inches of paver base to the run. Worked great until everything froze, then we had 3+ solid inches of ice/poop that couldn't be cleaned out . Thought it would all melt away this spring, but instead i have a mat of poop/mud/hay/etc over the gravel. I'm guessing that i'll have to peel this off now that it's spring and it's not magically disappearing, but I'm wondering about the choice of paver base. Should i add sand or maybe round gravel? Or is this just a spring chore i should get used to? Run is not covered - just wire (no slope to roof), but would covering it help?