Great looking setup. What are you growing in it, strawberry's? I would want to keep an eye on the water temp though. Especially with the reservoir sitting in direct sunlight, and on hot cement all day. It's bound to get hot. Also your likely to get a good bit of algae growth in the reservoir not lightproof. But I really think it's a great looking system. I plan to build something similar. One of those things on the to-do list, but hasn't been gotten to yet.