I don't quite get the concept of the deep litter method. My chicks are now 9 weeks old and doing great. I've been reading up on the DLM and am not sure about a couple things. If I ensure the litter in their coop is 7+ inches deep of shavings, how often, do I have to try to clean out the poop, or is that the point of DLM, ie, that I don't have to clean out the poop? If that's the case, does it just take care of itself? If I DO have to clean out the poop, how often and how best to do it? Thanks for any clarification.