Alien Flood & Drain PRO Silver Series 15 Litre
💳 Our 10% Digital Discount Has Been Applied Automatically 🚚 Free Next Working Day Delivery on Orders Over £75*£924.99 – £7,744.99Price range: £924.99 through £7,744.99 Original price was: £924.99 – £7,744.99Price range: £924.99 through £7,744.99.£832.49 – £6,970.49Price range: £832.49 through £6,970.49Current price is: £832.49 – £6,970.49Price range: £832.49 through £6,970.49.
Alien Flood & Drain PRO Silver Series 15 Litre
ALIEN Hydroponics Flood & Drain System 15 Litre
*Please Note- Flexitanks For The System Sold Separately
Transform your hydroponic growing environment with the Alien Flood & Drain PRO Silver Series, a high-performance Ebb & Flow system engineered for efficiency, scalability, and optimal root development.
Built with premium features—including heat‑reflective Silver Polymer pots, fabric pot inserts, and Dual‑Flow™ 50 mm fittings—this system delivers fast cycle times, virtually silent operation, and complete pot drainage for maximum oxygen exposure and nutrient uptake.
Designed for growers of all levels, it offers a simple plug-in and grow setup that supports any growing medium, from clay pebbles and coco mixes to soil blends. Automated flooding and drainage, powered by a Grasslin timer, maintains precise nutrient control across various plant types and stages.
The included AquaGuard moisture‑retention layer plays a vital role in enhancing root health: it slows evaporation, encourages roots to penetrate the full soil volume, and reduces watering frequency—resulting in fuller, more robust plant growth.
Why choose Alien Flood & Drain?
Provides a consistently oxygen-rich root zone, preventing root rot and enhancing nutrient uptake via automated drainage cycles.
Modular and expandable to suit any grow space configuration—making it ideal for small-scale use or larger setups.
Minimises monitoring and maintenance needs—quiet, water-efficient, and easy to operate.
Essential features at a glance:
| Feature | Value |
|---|---|
| Cycle Speed | Fast flooding and draining |
| Noise Level | Virtually silent |
| Drainage | Pots fully drain to avoid stagnation |
| Medium Compatibility | Clay, coco mix, soil |
| Automation | Grasslin timer controlled |
| Root Enhancement | AquaGuard layer encourages root spread |
| Build Quality | Heat-reflective Silver Polymer with Dual‑Flow™ fittings |
Harness the power of precision flood & drain hydroponics—the Alien Flood & Drain PRO Silver Series empowers you to grow healthy, high-yield plants with ease, efficiency, and confidence.
Parts Included
- Pots
- Stands
- Fabric pots
- AquaGuard’s
- 50mm Dual-Flow fittings
- 50mm Barbed Fittings
- Pumps
- Brain
- Float switches
- Extension cords x 2
- Power cord
- Nuts
- Washers
- Spanners
- Pipe cutters
- Instructions
Pipe:
- 19mm blue
- 19mm black
- 50mm silver *
* Supplied in 66cm lengths
Configuration Examples
Alien Flood & Drain System Reservoir & Chiller Sizing
| System Size | Tank Size | Recommended Chiller | Recommended Pump For Chiller |
|---|---|---|---|
| 3–6 | 100–120 L | HC-100A | NJ1200 |
| 8–16 | 225–280 L | HC-300A | NJ2300 |
| 18–32 | 400–550 L | HC-500A | NJ3000 |
| 36–48 | 750–780 L | HC-1000A | NJ3000 |
| 60 (2× tanks) | 2 × 400–550 L | HC-1000A | NJ3000 |
| 80–100 (2× tanks) | 2 × 750–780 L | HC-2200BH | NJ6000 |
Instruction Manual
ALIEN_Flood_&_Drain_Instructions_Brain_web
| Weight | N/A |
|---|---|
| Size | 3 Pots – 15 Litre, 4 Pots – 1 Row – 15 Litre, 4 Pots – 2 Rows – 15 Litre, 6 Pots – 15 Litre, 8 Pots – 15 Litre, 9 Pots – 15 Litre, 10 Pots – 15 Litre, 12 Pots – 2 Rows – 15 Litre, 12 Pots – 3 Rows – 15 Litre, 12 Pots – 4 Rows – 15 Litre, 15 Pots – 15 Litre, 16 Pots – 15 Litre, 18 Pots – 15 Litre, 21 Pots – 15 Litre, 24 Pots – 3 Rows – 15 Litre, 24 Pots – 4 Rows – 15 Litre, 28 Pots – 15 Litre, 32 Pots – 15 Litre, 36 Pots – 15 Litre, 48 Pots – 4 Rows – 15 Litre, 48 Pots – 6 Rows – 15 Litre, 60 Pots – 15 Litre, 80 Pots – 15 Litre, 100 Pots – 15 Litre |
FREE NEXT DAY DELIVERY – Delivery Information
We offer FREE NEXT-DAY DELIVERY on orders over £75*
*An additional heavy goods surcharge may be applied to heavy or bulky goods (more info).
**Regional delivery surcharges apply for Scotland, Northern Ireland and the rest of the UK.
Orders Under £75
– Orders under £75 and under 5KG will be charged £7.99 (inc vat).
– Orders under £75 and 5KG+ will be charged at £8.99 (inc vat).
Our Next Working Day Delivery Policy
We will always do our utmost to deliver goods to you the next working day for all orders placed before 3pm (Mon-Thurs).





