ALIEN® RDWC 21 Pot 20L PRO Silver Series

The ALIEN® RDWC 21 Pot 20L PRO Silver Series is a high-capacity recirculating deep water culture (RDWC) hydroponic system built for large-scale indoor growing and maximum production. By constantly circulating oxygen-rich nutrient solution through every plant site, the system creates highly stable root zone conditions that support rapid root development, fast vegetative growth and heavy flowering during the bloom stage.

With a system volume of 330L and a large 280L CAMO® reservoir, growers can maintain stable pH and nutrient levels across the entire hydroponic system, helping prevent common grow room issues such as uneven growth, poor nutrient uptake and root stress. The system can be arranged within a minimum footprint of 3m × 1.1m or extended up to 4.1m × 1.55m depending on the pipe layout and plant spacing. Designed around 50–60cm plant centres, this RDWC layout allows growers to run a shorter 7–10 day vegetative period while still producing dense, uniform canopies and high yields in grow tents or dedicated hydroponic grow rooms.

The system uses the JET-STREAM™ SILENT 2.0 water pump, delivering up to 2150 L/hr of circulation while using 32W, ensuring consistent nutrient movement through the entire system. For proper root oxygenation, the recommended JET-200 air pump provides 200 L/min of airflow at 210W, delivering the high dissolved oxygen levels required for vigorous plant health and strong flowering performance.

Key Benefits

• Large-scale RDWC hydroponic system designed for serious indoor growing
• Recirculating nutrient solution ensures consistent nutrient uptake across all plants
• Promotes explosive root development and rapid vegetative growth
• Supports heavy flowering, improved bud density and higher yields
• Large central reservoir stabilises pH and EC levels
• Powerful circulation pump ensures even nutrient distribution
• High dissolved oxygen levels support strong plant health
• Ideal for large grow rooms and commercial-style hydroponic systems

How to Use

1. Position the RDWC system in your grow tent or grow room according to the recommended footprint and plant spacing.

2. Connect all pots using the supplied pipework and link them to the CAMO® reservoir.

3. Install the JET-STREAM™ SILENT 2.0 water pump in the reservoir to circulate nutrient solution throughout the system.

4. Connect a suitable high-output air pump (such as the recommended JET-200) to provide strong aeration to each root zone.

5. Fill the reservoir with water and add hydroponic nutrients suitable for RDWC or other hydroponic systems.

6. Adjust and maintain pH and EC levels based on plant stage, from vegetative growth through to the bloom stage.

7. Maintain stable water temperatures and strong aeration to maximise nutrient uptake, root health and final yield.

Important: Air pump must be purchased separately.