In the world of hydroponic technologies, especially in the field of growing cannabis hydroponically, many are familiar with the DWC system — Deep Water Culture, which made a real breakthrough among farmers. Here, the plant roots are constantly in a nutrient solution, and the supply of oxygen ensures rapid growth and abundant yields. DWC has become a convenient alternative to the traditional method of growing in soil, combining simplicity and efficiency, making it one of the most popular systems for cannabis cultivation.
Today we will look at an improved version of this technology — RDWC (Recirculating Deep Water Culture). In this setup, the nutrient solution is not just in each container but continuously circulates between all plant tanks and the central reservoir. This provides even more advantages than a standard hydroponic marijuana system.
What is a DWC system?
Deep Water Culture is a method in which roots are fully submerged in oxygen-rich nutrient solution. No soil is used — the plant gets its nutrition directly from the water. For aeration, pumps and diffusers are used, significantly accelerating growth.
Key features of DWC:
- Nutrient solution reservoir. It serves as the “pot,” with a mesh cup holding the plant above, allowing the roots to grow down into the water.
- Constant oxygen supply. Ensures rapid root development and vigorous above-ground growth.
- Parameter control. Regular monitoring of temperature, pH, and electrical conductivity is required.
- Ease of maintenance. The absence of soil reduces the risk of disease and simplifies system upkeep.
DWC is ideal for those who want to learn how to grow cannabis at home with maximum growth speed and great results.
RDWC system: the next step in DWC evolution
In classic DWC, each container works separately, and the solution in each must be prepared and adjusted individually. In RDWC, all containers are connected to a central reservoir, from which the solution flows to the plants and back.
Advantages of RDWC:
- stable pH and easy parameter control;
- even nutrition for all plants;
- improved oxygen distribution;
- less plant stress;
- easy scaling for large areas;
- water savings;
- 24/7 feeding and aeration.
This setup is especially popular among professional farmers as well as those using modern cannabis-growing equipment who want stable harvests without extra hassle.
Why RDWC is suitable not only for professionals
Although RDWC is often seen as a system for industrial greenhouses, it is also perfect for enthusiasts who want to grow quality plants at home. With proper setup, even a compact system can yield results comparable to professional facilities. The key is to pay attention to pump, filter, and reservoir capacity selection to ensure uninterrupted circulation and feeding.
Personal experience and startup recommendations
It’s best to start with a small system for 2–4 plants. This allows you to learn how recirculation works, how to control pH and EC, and how to respond to plant growth changes. Later, the system can be easily expanded by adding more tanks. If you have only worked with soil before, RDWC may surprise you with its growth speed and yield — the main thing is to be ready for more careful monitoring of solution parameters.
Conclusion
DWC and RDWC are effective hydroponic growing cannabis seeds methods. But the recirculating system wins in terms of stability, convenience, and expansion potential. That’s why RDWC is increasingly chosen for both commercial greenhouses and home hydroponic projects where high yields and full process control are important.
Attention!!! Errors Seeds does not encourage you to grow cannabis in any way. Cultivation is prohibited by the laws of Ukraine. This article is for scientific and informational purposes only.
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