I just saw one of those towers a year or two ago near where my inlaws live. Theirs was shaped like a pine tree. It is pretty amazing what they are doing these days to try to make them not stick out as much and blend in more with the natural surroundings. Put one of those in among some other pine trees and you would probably never know the difference. That is cool about the wash, would be interesting to see pictures when it is full. How quickly does it drain after a hard rain?