8 Gallon Recirculating Deep Water Culture RDWC Hydroponic System - 4 Site

Maximize your plant growth with the 4-Site 7.9 Gallon RDWC Hydroponic Grow System! Designed for serious growers, this Recirculating Deep Water Culture (RDWC) System provides your plants with continuous access to oxygenated, nutrient-rich water—resulting in healthier plants, faster growth, and higher yields.

With four 7.9-gallon grow sites connected via 50mm PVC piping, this system is ideal for growers using a 4'x4' or 5'x5' grow space. A powerful 400 GPH submersible pump keeps nutrients evenly distributed, while a 35 L/min high-capacity air pump ensures optimal root oxygenation.

• Easily expandable to a 6 or 8-site system with optional expansion packs

  • 2-Site 8 Gallon RDWC Expansion Pack

  • 4-Site 8 Gallon RDWC Expansion Pack

• Low-maintenance system with a single top-up reservoir
• Prevents algae, bacteria, and fungi growth for cleaner roots
• No extra tools required – quick and simple setup

RDWC System Dimensions:

• 4 Site 7.9 Gallon RDWC System, 38” x 43.5”
• 6 Site 7.9 Gallon RDWC System, 38” x 68.5”
• 8 Site 7.9 Gallon RDWC System, 38” x 93”

Additional accessories available with our 8 Gallon RDWC:

• Recirculate / Pump to Drain Diverter Valve Assembly
• Automatic Fill Float Valve Assembly

Upgrade your hydroponic setup and grow like a pro with this powerful RDWC system!

Includes:

• 4 x 7.9 Gallon Grow Site (12.5" x 12.5" x 16.25") with Lid and 6" Net Pot
• 1 x 7.9 Gallon Reservoir (12.5" x 12.5" x 16.25") with Lid
• 2 x Straight Connector PVC Tubes with Large Silicone Rubber Seals
• 1 x XL Tee Connector PVC Water Supply Tube with Large Silicone Rubber Seals
• 2 x XL Right Angle Connector Plastic Tubes with Large Silicone Rubber Seals
• 1 x 400 Gallon/Hour Submersible Recirculating Water Pump
  
• 1 x Bottom Draw Pump Fitting for Recirculating Pump
• 1 x 7' Water Supply Tubing
• 2 x 1/2" Hose Clamp
• 1 x 10.5" Water Supply Connector with 1/2" Pump Fitting
• 2 x 25mm Reservoir Fitting
• 1 x 14mm Red Cap
• 1 x 400 Gallon/Hour Submersible Drain Pump and Bottom Draw Fitting
• 1 x 35 L/min High Capacity Super Quiet Air Pump with 10 Outlets
• 2 x 30’ x Black Air Tubing
• 6 x Cylinder Air Stones (4" x 2" Dia.)
• 1 x Fitting Wrench
• 6L Clay Pebbles
• Instructions 
• 

 Did you know?

• RDWC systems grow healthier plants with greater yields, in less time by providing plants with continuous access to water, oxygen, and nutrients
• Oxygenated water enables the plant roots to absorb nutrients more efficiently, increasing plant growth rate substantially
• 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, while also keeping plant roots clean and healthy
• RDWC systems are relatively low maintenance; Check nutrient solution often and top up the as needed through the central reservoir; change the solution in the reservoir every one or two weeks

FAQs

Q: What size footprint is the system?

A: Artisun Technology's 4 Site 8 Gallon RDWC System is designed to fit into a 4’x4’ or 5'x5' footprint. The Overall size is 38" wide by 43.5" deep

Q: How frequently should you add nutrient solution to an RDWC System?

A: The reservoir level should be checked daily and topped up when needed. The nutrient solution consumption rate of the plants will depend upon the type, size and growth phase of the plants.

 Q: How frequently should you change the nutrient solution in an RDWC System?

A: The nutrient solution should be drained and replenished every 1-2 weeks depending upon on the type and size of the plants.