Hi Everyone! My new chicks will be here hopefully this time next week and I am prepared except for "grit". Told hubby about using play sand and he stated that he can get free sand from our friend and neighbor who is a concrete contractor. I told him that all of the "on-line" recommendations I've read say to use play sand so he asks me why...? Have spent the day researching and cannot find a good answer for him. Can anyone help me out??? I know I can use dirt from the yard but we are "blessed" with red clay here which is hard as concrete, right now. Thanks in advance!