I really need help. The 2 ducks' house is in place and we have done site work; now, to build their large run. I had my mind set on sand, but now I'm worried it might be a mistake. Obviously, I want to get it right the first time. So, we are building the run about 20'x15'. In it, we are going to have a pond area. We are going to use corrugated roofing on it and I was going to make half of it clear roofing (or should I?). We already have the hardware cloth for the sides. Everyone talks about the deep-liter method. But, how does that work when it rains?! Unless the rain always comes straight down softly and there is no wind, the straw or chips are going to sometimes get soaked. Won't it mold? That sounds unhealthy. Also, what about the splashing in the pond? won't it just make the litter a constant damp mess? I was planning to put some paving stones and river sand/pea gravel to fill in around them just around their pool to keep that to a minimum...but you know ducks. Someone please explain this to me. Do I just go in daily and remove heavily soiled areas and throw more straw down? Do I have to remove the areas that get wet after a rain? What about spilled food? Won't it get stinky and nasty in the straw if I don't remove it manually? So confused. I think my husband is going today to buy lumber, etc. Thanks.