![]() ![]() 1.A piece of poly pipe placed at the bottom of the fish tank.In the end, after watching a heap more YouTube videos, he created the following circular system: "It didn't work the first try - there were a couple of iterations," Alexis recalls. The final step was probably the trickiest: creating a siphoning system that cycles water through the whole structure, using just one strategically placed pump. He then filled the top wooden box with baked clay pebbles, creating soil-free veggie beds. With the basic structure built and lined, Alexis filled the bottom wooden box with water to create the fish tank. How to create a self-sustaining water siphoning system He joined these into S-bend shapes using PVC connectors, and added aquaponics plant baskets to each hole. Next, he built a frame connecting the two boxes, plus a second frame for the top of the system, which unclips easily so the two elements can easily be pulled apart when moving.įinally, Alexis cut three, one-metre lengths of recycled PVC pipes, using a saw kit to drill holes every 15cm for the plants to live within. He added plastic pond liner to both boxes to make them watertight. These had a strong brace underneath capable of holding the weight of either water or plants. And he managed to build it using largely found, foraged and recycled materials.įirst up, Alexis created two, 110cm by 60cm rectangular boxes by joining four lengths of recycled plywood together with timber screws. ![]()
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