Alien RDWC 4 Pot 20L Black Series

The Alien RDWC 4 Pot 20L Black Series is a compact recirculating deep water culture hydroponic system designed for growers who want the speed and performance of RDWC in smaller grow tents or grow rooms. By constantly circulating nutrient-rich, oxygenated water through each plant site, this system helps deliver rapid vegetative growth, strong root development and excellent yields.

The RDWC design ensures all plants receive the same nutrient solution from the central reservoir, maintaining stable EC and pH levels across the system. This consistency helps avoid uneven plant growth and supports healthy development from early vegetative growth through to the flowering stage.

Key Benefits

• Recirculating deep water culture system designed for fast hydroponic growth
• Highly oxygenated root zone promotes strong root development
• Consistent nutrient distribution across all plant sites
• Compact footprint ideal for smaller grow tents and grow rooms
• Encourages rapid vegetative growth and improved flowering performance
• Durable Black Series components built for reliable hydroponic systems
• Suitable for use with clay pebbles and other hydroponic growing media

How It Solves Grow Problems

Many growers experience slow growth and poor nutrient uptake when root zones lack sufficient oxygen. RDWC systems solve this by suspending roots directly in oxygen-rich nutrient solution, allowing plants to absorb water and nutrients much faster than in soil or coco.

The recirculating design prevents stagnant nutrient solution and keeps feeding conditions consistent across all plants. This helps avoid uneven growth, weak root systems and nutrient imbalances that can reduce yield or cause problems during the bloom stage.

With the recommended air pump providing strong aeration, plants develop dense root masses that support healthier flowering and improved bud density.

How to Use

1. Assemble the RDWC system and connect all pots to the main reservoir using the supplied pipework.

2. Fill the reservoir with water and add hydroponic nutrients according to the manufacturer’s feeding schedule.

3. Install an air pump with air stones to oxygenate the nutrient solution (required for RDWC operation).

4. Place plants into net pots filled with clay pebbles or another suitable hydroponic growing medium.

5. Turn on the circulation pump to begin recirculating nutrient solution through the system.

6. Regularly monitor pH, EC and water levels to maintain optimal plant health throughout vegetative growth and flowering.

Technical Specifications

• System type: Recirculating Deep Water Culture (RDWC)
• Pot capacity: 20L per plant site
• System volume: 75L
• Reservoir volume: 120L

Footprint

• Minimum footprint: 1.1m × 0.7m
• Maximum footprint: 1.36m × 0.96m
• Recommended plant spacing: 50–60cm centres

Water Pump

• Model: JET-STREAM™ SILENT 1.0
• Maximum flow rate: 950 L/hr
• Power consumption: 16W

Recommended Air Pump (sold separately)

• Model: JET-35
• Air output: 35 L/min
• Power consumption: 20W