In these last weeks we have been searching, ordering, building and fine tuning parts to get our system working as we designed it to be. And here it is! We put a short video on YouTube:
The principle is completely the same as the ‘conventional’ windowfarm. The pictures below explain where we positioned the parts.
The challenge was to create a matching design in our living room, since it is hard to look around it. It is there! Therefore some of the technical/functional parts had to be redesigned. Next to that we added some features to maintain ease of use. These were:
- Easy to reach herbs / plants when taking care of them or harvesting: To reach the plants we are able to lower the construction by a system with pulleys, exactly like we described in our last post.
- All parts that are in contact with water can be cleaned easily: The reservoir exists of several parts. The bottom part is made of a piece of plastic that were made with a lathe machine. There are two O-rings that seal it to a rainwater pipe that serves as the reservoir. All the connections to the water and air are built into the bottom part.
- The reservoir shouldn’t look too bulky: By using a rainwater pipe (with a diameter of 70 mm) as reservoir it gives a slimming effect. On top of the reservoir we placed a specific part (for connecting water pipes to each other) where we put in a plant. This is also the last plant that gets the water before it drips back into the reservoir. This way it looks like it serves as a vase. A rather big vase, for (at this moment) a pretty small strawberry plant though…
Another difficulty was to get the water all the way to the top. We did not only have a large height to reach ( approx. 3 meters = 10 ft. ), but it also runs in an angle (45 degrees). By tuning the system we did it. The parameters to take into account are:
- -Length of tube that sucks up the water in the reservoir
- -Water level that rests on top of the T split.
- -Amount of air pressure
- -Thickness of tubes
We added some pictures to get an idea. Enjoy!
Thijs & Nienke