Antonino emailed me to ask.
> 1. How did you build the basin? Is the basin attached to the structure at all?
My Basin is built from PVC (bad stuff). It is not attached to the wall. It just sits under the edge of the wall. I would have preferred to use stainless steel (expensive) or even some kind of plastic basin. Unfortunately my wall is curved so it had to be something custom.
> 2. How does the structure stand? Are the aluminum pipes screwed to the closet itself?
Yes the aluminum is screwed to the top of the closet and to the floor.
> 3. How many gpm is the pump you are using?
Unfortunately I don't remember. When you buy your pump it will be rated to pump water vertically up to a certain height. I would say in general you can go to the lower end of the range. You don't need the kind of force these pumps are rated for to water a wall.
> 4. How thick is the tubing you use for irrigation?
Also don't remember exactly but I'd estimate the vertical tube at 1.5" and the tube across the top at .5"
Thanks for your questions and good luck with your wall.
If you have any greenwall building questions please send them to m at blackcross.cc