Left Continue shopping
Your Order

You have no items in your cart

Welcome to Artisun Technology

RDWC Hydroponic Systems for Optimal Plant Growth and High Yields

Get to the root of it with Recirculating Deep Water Culture Systems

In a Recirculating Deep Water Culture system (RDWC), the roots of the plants are submerged in a nutrient and oxygen-rich water solution 24/7. Plants are grown in a net pot that is suspended from the bucket lid and contains suitable growing media such as clay pebbles. The clay pebbles provide support for the plant as it grows, as well as absorbs the nutrient solution for the plant roots. As the plant grows, the roots grow and descend into the nutrient and oxygen-rich water solution. The solution is actively circulated via a pump through the buckets connected by pipe to the central reservoir, maintaining an even water level across all buckets. The pump ensures even and optimal distribution of nutrient solution to each bucket. The nutrient water solution only needs to be added to the central reservoir and all plants receive the recirculated oxygenated nutrient solution continuously. Roots develop quicker and grow healthier, producing healthier plants and greater yields. It's easy to monitor and maintain pH and EC levels from the central reservoir, saving time and effort. 

At a Glance:

  • RDWC systems grow healthier plants with greater yields by providing plants with continuous access to water, oxygen, and nutrients 
  • Nutrients are evenly distributed to each connected grow site and maintain a consistent level across all grow sites
  • The constant flow of water helps prevent algae, bacteria and fungi from growing, and keep plant roots clean and healthy
  • RDWC systems are relatively low maintenance; Check nutrient solution often and top up as needed through the central reservoir; change the solution in the central reservoir every one or two weeks
Best selling
recirculating deep water culture system 5 gallon
21 reviews
recirculating deep water culture setup for beginners
1 review
RDWC Hydroponic System 8 Gallon 4-Site
RDWC Auto-Fill Float Valve Assembly
RDWC 5 Gal Reservoir Tube Kit
DWC Hydroponics Starter System
4 site expansion pack for 8 gallon rdwc system
RDWC 8 Gal 2-Site Add-On Kit
RDWC Hydroponic System 8 gallon 2-site
Water Tray for Plants / Spill Containment Tray - 46" x 46" x 6"
Save 46%
foam collar for net pots in hydroponic setup
hydroponic foam insert for hydro kit net pots

What is an RDWC Hydroponic System and Who is it Best for?

A Recirculating Deep Water Culture (RDWC) system is an advanced form of hydroponics where multiple growing buckets are connected to a central reservoir. Nutrient-rich water continuously circulates between them, delivering oxygen and nutrients evenly to all plants.

RDWC is ideal for serious home growers, gardeners who are looking to scale up, and small commercial setups looking for fast and healthy plant growth with less manual adjustment.

How to Set Up an RDWC System?

  1. Position all grow buckets and connect them to a central reservoir using tubing.
  2. Install air stones in each bucket and connect them to an air pump.
  3. Add net pots and growing media to each lid.
  4. Fill the reservoir with water and hydroponic nutrients.
  5. Ensure consistent water flow and oxygen delivery by checking the circulation.
  6. Monitor pH, electrical conductivity, and water levels regularly.

Benefits of Using an RDWC System

  • Consistent Nutrient Distribution: Every plant gets the same balanced mix of water, nutrients, and oxygen.
  • Faster Growth Rates: Continuous oxygenation and nutrient access allow rapid development of roots, helping in growing stronger and healthier plants.
  • Scalability: Easily expand your setup by adding more buckets without the hassle of complex rearrangement.
  • Efficient Maintenance: A single reservoir makes monitoring and adjusting pH or nutrient levels simple.
  • Higher Yields: Healthier root zones allow better growth of the plants, ultimately bringing more productive harvests.

FAQs - RDWC Hydroponics


+

RDWC improves on DWC by circulating nutrients through multiple buckets, ensuring consistent pH and oxygen levels. It is beneficial for larger or multi-plant systems.

+

Replace the nutrient solution every 1 to 2 weeks to prevent nutrient imbalances, salt buildup, or microbial contamination.

+

Maintain a pH between 5.5 and 6.5, depending on the crop. This range optimizes nutrient uptake and root health.

+

It depends on your needs. RDWC systems are ideal for growers seeking high yields, fast growth, and full control over water and nutrients.

+

RDWC offers faster plant growth, stable nutrient delivery, improved oxygenation, and scalability, making it ideal for serious growers and commercial setups.

+

Nutrient water can sit for up to two weeks if stored in a cool, dark place with proper aeration. Regular monitoring of pH and EC is essential.

+

Yes, air stones or diffusers are crucial to keep oxygen levels high in each grow bucket, preventing root rot and promoting healthy growth.

+

Yes, many RDWC setups are compatible with auto-dosing systems, which help maintain consistent nutrient levels and reduce manual labor.

+

Reservoir size depends on the number of plant sites and the type of plant. A 5 to 50 gallon reservoir is typical, but the size depends on the plant size and system scale.

+

It is best to grow plants with similar nutrients and pH needs to avoid imbalances across the system.