Hi, We are looking to put build a run and coop under our deck. The deck is 10 x 14, and about 5'5" off the ground (I have to duck just slightly to get under it). My main question is, will we be able to keep the smell down so it won't be unpleasant for us to eat on the deck just above the hens? How often will we need to clean it to keep it nice? Thanks!