Hey thanks for the feedback! I did think about doing the intake on the floor but couldn't get my head around the filtering issues if I put it there. I liked the shade idea a lot though, and I have now built a "trellis" on the exterior of the intake wall two feet away. I planted some fast growing vines (honeysuckle) which will in theory grow very fast and shade the entire sunny wall after a few months. Not sure about this but I liked the "living wall" concept.