Do u , what?..?..?.. Mix the dropping in it, pick the droppings up, take a rake and scoop the top layer, rake the poop and just let the dropping go wherever? Another words...chicken rune with sand? What so u do? Also, iw it necessary to put pea gravel down first then sand, or just throw that Sand in there And..and..and.. What do you do with the sand..once a ton of snow has fallen..when the snow melts..is the sand mush, swamp land..or what? Rain pounding on it..in winter, spring. Just would like to know if I add sand , after the chickens eat all the grass in their new run..how do I maintain it?