Most traditional Deep Water Culture (DWC) hydroponic systems need to keep the plant at a fixed height and regular nutrient supplementation can ensure that the root always be in contract with nutrient solutions, water and air. The Popular planting equipment of the DWC hydroponics system is the hydroponic buckets system or hydroponic floating raft system 

The DWC Bucket system is used to grow large plants because they have bigger roots, need more growing space and air. The system is very convenient to manage.

The hydroponic flat system, which is basically no need to maintain the system, or even supplement water from transplanting to harvesting. It's very friendly for small vegetables with low oxygen demand 

In fact, the DWC system has derived many practical irrigation systems for now. It can be used as an aquaponic or save water by top drip or build on rolling branches to solve problems of the plants with high oxygen demand. Of course, it's a hydroponic system. So what kind of DWC system do you need ?