The goal is to grow tomatoes, chilis, carrots, lettuce and spinach on my balcony. It shall be hydroponic and as much automated as possible. Here's my setup so far ...
Plumbing and Dutch-buckets
No rocket since here. It's all made from 1/2 inch PCV pipe and fittings from the hardware store. The buckets were done according to these excellent instructions by mhpgardener. As I wanted the setup to be removable, I didn't use any glue. To achieve a good seal anyway, I used a bit of silicone grease on all fittings. So far it holds up fine.
