Alien RDWC 21 Pot 36L Black Series – Deep Water Culture

High-capacity recirculating DWC built for uniform canopies and heavy yields

The Alien RDWC 21 Pot 36L Black Series is a large recirculating deep water culture system for growers running bigger indoor setups who need fast, even growth across a whole crop. By constantly circulating oxygen-rich nutrient solution between all 21 plant sites, it holds a stable root zone that drives rapid root development, vigorous vegetative growth and heavy flowering. With a 550L system volume, pH and EC stay balanced across the whole system, heading off the uneven growth, weak roots and nutrient swings that plague large unbalanced feeds. It arranges within a minimum footprint of 3.4m x 1.35m or expands to 5.25m x 1.9m, uses 60cm plant centres, and the heavily oxygenated environment lets you run short 10-14 day vegetative periods.

Key Benefits

• 21-site RDWC design for large grow tents and hydroponic grow rooms
• 550L system volume recirculated for consistent uptake across every plant
• Optional 280L CAMO® top-up tank keeps the header pot topped up through its float valve
• JET-STREAM™ SILENT 2.0 pump moves up to 2150 L/hr at just 32W
• Strong root oxygenation for dense flowering and improved flower density
• 60cm plant centres for a uniform, easily managed canopy

Why do big crops grow unevenly on separate feeds?

Running plants on separate or hand-managed reservoirs invites nutrient fluctuations, pH drift and weak root systems, so some plants race ahead while others lag. Recirculating a single large body of aerated solution keeps EC, pH and dissolved oxygen the same at every site, so the whole canopy grows together and finishes together.

How to Use

1. Position the system in your grow tent or grow room to the recommended footprint and plant spacing.
2. Connect all pots to the header pot with the supplied pipework; with a Tank option, link the CAMO® tank to the header pot's float valve.
3. The JET-STREAM™ SILENT 2.0 pump comes fitted in the header pot to circulate solution throughout the system.
4. Fit a suitable air pump of 100 L/min (not included) to aerate the root zones.
5. Fill the system with water and add nutrients formulated for RDWC.
6. Set and maintain pH and EC to suit the stage, from vegetative growth through bloom.
7. Keep aeration strong and water temperature stable, using a chiller if needed, to maximise uptake, rooting and yield.

Important: air pump must be purchased separately.