For all those with a dirt run, how do you clean the run out and get rid of the poop? At the moment I have concrete slabs down, covered in sand and I am constantly sieving or replacing the sand and couldn't imagine having a dirt run as I can't imagine it would be easy to get the poop up? I got fed up with constantly picking up poop that I let them free range now and the lawn mower gets up the poops in the grass and just wash the patio down with water once a week to get rid of stay plops they have kindly left me. They still have their sandy run but it is alot nicer now they don't poop in there all the time. Is a dirt run harder to clean than a sandy one?