What is a hydroponic system? It is a system that doesn’t use soil to grow plants but a solution that is water based and rich in nutrients. One disadvantage that most people have found is that a quality system can be very costly. You tend to get what you pay for so going cheap will result in low-quality plants. Lucky for us there are some DIY versions out there are both quality and cost-efficient.
The video below shows how to grow 168 plants in an easy to make and portable frame. It is mostly PVC pipe and lumber. I don’t love the look of white PVC pipe all that much. I think that it sticks out like a sore thumb, especially in a green yard, but I do love that it can be used to make cool stuff like this and that it is affordable. If I was going to make this I would paint the pipes green.