Alien RDWC 28 Pot 20L PRO Silver Series – Deep Water Culture
Alien RDWC 28 Pot 20L PRO Silver Series – Deep Water Culture
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Description
A 28-pot RDWC built for high-output, hands-off growing
The ALIEN® RDWC 28 Pot 20L PRO Silver Series is a professional recirculating deep water culture system for serious indoor production. Oxygen-rich nutrient solution is circulated continuously through all 28 sites and back to the header pot, so every plant sees the same pH, EC and dissolved oxygen instead of each pot drifting out of sync. That shared, highly aerated root zone is what drives fast root development, vigorous veg and heavy flowering, and it removes the uneven growth and weak roots that plague static systems at this scale. With a 435L system volume, the large buffer keeps conditions stable and easy to correct, and the highly oxygenated environment lets many growers run short 7 to 10 day vegetative periods while still hitting strong yields.
Key Benefits
- 435L system volume for stable pH and nutrient levels across all 28 pots
- Flexible 3m x 1.47m to 4.1m x 2.15m footprint for dense, even canopies, with 50cm plant centres recommended
- JET-STREAM™ SILENT 2.0 pump: up to 2150 L/hr on just 32W for constant nutrient movement
- High dissolved oxygen via a 280 L/min air pump (not included) for healthy roots and denser flowers
- 7 to 10 day veg periods possible thanks to the fast-growing RDWC environment
- Recirculating design gives consistent nutrient uptake and reduces daily maintenance across a large plant count
How to Use
- Position the system to your chosen footprint and plant spacing in the grow tent or room.
- 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.
- The JET-STREAM™ SILENT 2.0 water pump comes fitted in the header pot to circulate solution.
- Fit a high-output air pump of 280 L/min to the A.I.R. injection rings to aerate the root zones (sold separately).
- Fill the system and add nutrients suitable for RDWC systems.
- Set and maintain pH and EC to suit each stage, from veg through to bloom.
- Keep aeration strong and water temperature stable, using a chiller if required, to maximise uptake and final yield.
Technical Specifications
- System type: recirculating deep water culture (RDWC)
- Series: PRO Silver, heat-reflective silver polymer
- Plant sites: 28 x 20 L pots
- Pot size: 33 x 33 x 34 cm
- System volume: 435 L
- Minimum footprint: 300 x 147 cm (pots together, no tank)
- Maximum footprint: 410 x 215 cm (supplied pipe, 60 cm centres)
- Recommended plant centres: 50 cm
- Water pump: JET-STREAM SILENT 2.0, in the header pot (included)
- Pump flow: 2,150 L/h
- Pump power: 32 W
- Header pot: 20 L, 33 x 33 x 34 cm, float valve for top-up tank
- Aeration: JET-STREAM A.I.R. ring (Ø 22 cm) in every pot
- Air requirement: 280 L/min (air pump not included)
- Pipework: 50 mm silver main pipe (Ø 60 mm outside), 19 mm return, 16 mm airline
- Return line: inline ball valve and filter
- Net pots: square, Ø 19.5 cm, raised grid base
- Recommended top-up tank: 250 L
- Recommended water chiller: 500 L (chiller ready, needs its own pump)
- Recommended veg time: 7–10 days
- Kit includes: pots, lids, net pots, header pot with water pump, Dual-Flow fittings, valve and filter, A.I.R. rings, pot clips, pipe, airline, pipe cutters, spanner
| By size | No Tank / No Chiller Pump | No Tank / With Chiller Pump SILENT 1.0, 950 L/h |
|---|---|---|
| Tank included | No | |
| Chiller pump | No | SILENT 1.0, 950 L/h |
| Dimensions | 300 x 147cm | 300 x 147cm |
| By size | 280L Tank / No Chiller Pump | 280L Tank / With Chiller Pump SILENT 1.0, 950 L/h |
|---|---|---|
| Tank included | 280 L CAMO | |
| Tank size (cm) | 55 x 55 x 90 | |
| Chiller pump | No | SILENT 1.0, 950 L/h |
| Dimensions | 300 x 147cm | 300 x 147cm |
Important: the air pump must be purchased separately.

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