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Overhead view of RAIN 4 POT 1 ROW 15L COMPACT HEADER KIT, featuring four square pots connected in a line.
Overhead view of RAIN 4 Pot 1 Row 15L Remote Header Kit, featuring four modules connected to a remote header.
RAIN 4 POT 1 ROW 30L Compact Header Kit: four gray square irrigation modules connected to a final header unit.
HIVE RAIN 4 POT 1 ROW 30L REMOTE HEADER KIT with four grey modules connected to a remote header unit.
Overhead view of RAIN 4 POT 1 ROW 15L COMPACT HEADER KIT, featuring four square pots connected in a line.
Overhead view of RAIN 4 Pot 1 Row 15L Remote Header Kit, featuring four modules connected to a remote header.
RAIN 4 POT 1 ROW 30L Compact Header Kit: four gray square irrigation modules connected to a final header unit.
HIVE RAIN 4 POT 1 ROW 30L REMOTE HEADER KIT with four grey modules connected to a remote header unit.

Alien Hydroponics RAIN System - 4 Pot 1 Row

Official Alien Hydroponics Dealer Model: BD100-5104C
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 $1,320.79 USD
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  • Automated irrigation for 4 fabric pots delivers the exact same nutrient volume to every plant site
  • Dual-Flow fittings and copper drain covers prevent root intrusion and system clogs
  • Glue-free assembly with threaded fittings for quick setup and maintenance
  • 1-year manufacturer's warranty
  • View More Details
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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are switching to top-feed automation because hand-watering individual pots leads to uneven nutrient salt buildup.
  • You are installing a recirculating rain system because you need to wash away residual salts without wasting solution.

What We Found

  • Those silver pipes aren't just for looks, they really do keep the nutrient solution cooler in a hot grow room.
  • The copper drain covers are a simple touch that save you from having to snake roots out of your main lines mid-cycle.
  • The sloped pot base is a detail we really appreciate because it forces every drop of runoff toward the drain.

What Users Say

  • Users who switched from hand-feeding say the automated rain brain finally gave them their weekend freedom back.
  • Growers who expanded their setup found that adding extra pots to this single row was easier than a total redesign.
  • Buyers report that the raised drainage grid stopped the salt buildup issues they used to see with flat-bottom pots.

Alien Hydroponics RAIN System - 4 Pot 1 Row

Tired of inconsistent watering and nutrient distribution in your garden? The Alien Hydroponics RAIN System eliminates the guesswork, delivering a perfectly balanced solution to your plants every time. Designed for both beginner growers and experienced hobbyists, this 4-pot kit mimics natural rainfall to ensure optimal nutrient absorption, boost oxygenation, and promote vigorous root health, all while minimizing waste.

The innovative top-feed design works with a variety of growing mediums and actively prevents common issues like root rot, nutrient lockout, and salt buildup. This complete kit from Alien Hydroponics is engineered for simplicity, featuring a no-glue, tool-free assembly that makes setup and maintenance a breeze. Whether you're just starting out or cultivating a small selection of premium plants, the RAIN system provides a reliable foundation for a successful harvest. For those planning a larger setup, the system is fully scalable, with options like the 8 Pot 1 Row Kit available.

Please note: This kit requires a nutrient reservoir, which is not included. We highly recommend pairing it with a compatible tank like the Alien GardenTank 30 Gallon reservoir to complete your setup.

Features

🌧️
Mimics Natural Rainfall

Delivers water and nutrients evenly, washing away residual salts for healthier roots.

🧠
Automated Rain Brain

Ensures precise and consistent nutrient delivery, keeping your feeding schedule on time, every time.

⚙️
Dual-Flow™ Fittings

Patent-pending design allows for a free-flowing system and prevents roots from clogging the pipes.

🛡️
Copper Drain Covers

Effectively stops roots from entering the pipe network, ensuring long-term reliability.

🌡️
Heat-Resistant Pipes

Heat-reflective silver pipes minimize heat absorption, keeping your nutrient solution cool.

🔧
Easy Setup & Maintenance

Threaded fittings and snap-on pipes allow for a quick, glue-free setup and easy cleaning.

💧
Efficient Drainage

A raised drainage grid and sloped base ensure rapid draining and prevent waterlogging.

🌿
Fully Customizable

Easily expand your system with more pots or reconfigure the layout to maximize your grow space.

What's Included

  • 1x DRAIN Pump Pipe Adapter
  • 1x Pressure Water Pump 10
  • 1x Cycle Timer
  • 1x AERO/RAIN Header Pot Complete 20L
  • 4x AERO/RAIN Pot 15L
  • 1x Silver Lid
  • 4x RAIN Lid Cover
  • 4x RAIN Lid
  • 8x RAIN Lid Clip
  • 1x Header Pot Blank
  • 8x Pot Stand for 15L Pot
  • 4x RAIN Fabric Pot 15L
  • 4x Drain Cover - Copper
  • 1x Elbow 50mm Dual Flow
  • 3x Tee 50mm Dual Flow
  • 5x Washer 50 X 64mm
  • 5x Nut 50mm Dual Flow
  • 8x Clamp Size 2
  • 2x Valve 16mm Green
  • 1x Plug - 16mm
  • 8x Tee 16mm - 4mm
  • 4x Pot Clip 16mm
  • 2x Elbow 19mm Barbed
  • 2x Elbow 25mm Barbed
  • 1x Siphon Tee 19mm Fitting
  • 1x Siphon Tee 25mm Fitting
  • 3x Pipe 16mm Silver Bulk by Meter
  • 4x Pipe 19mm Black Bulk by Meter
  • 4x Pipe 25mm Blue Bulk by Meter
  • 2x Pipe 4mm Green Bulk by Meter
  • 2x Pipe 50mm Silver 100cm Piece
  • 1x Wrench 50mm
  • 1x Pipe Cutter 50mm
  • 1x RAIN Instructions
  • 1x JET-STREAM DRAIN Water Pump 1100GPH
  • 1x JET-STREAM DRAIN Water Pump Power Adapter

Specifications

Specification Value
Number of pots 4
Number of rows 1
Minimum Assembled Length (15L / 30L Pot) 72" / 84⅝"
Minimum Assembled Width (15L / 30L Pot) 14⅛" / 17⅜"
Maximum Assembled Length (15L / 30L Pot) 110⅝" / 136¼"
Maximum Assembled Width (15L / 30L Pot) 14⅛" / 17⅜"
Water Pumps Included (15L Pot) JET-STREAM DRAIN 1100GPH, Pressure Pump 20
Water Pumps Included (30L Pot) JET-STREAM DRAIN 1100GPH, Pressure Pump 40
Recommended Reservoir (Min. Capacity) 30 Gallons / 120 Liters (Not Included)

Setup & Maintenance

System Setup Steps:

1. Prepare Pots

Attach the necessary fittings to the pots.

2. Connect the System

Use piping to connect the pots and the header pot to establish the recirculating network.

3. Install Air System

Set up the air pump and connect it to the air stones in the pots.

4. Integrate Pumps

Install the water pump(s) for recirculation and chilling (if applicable).

5. Set Up Nutrient Tank

Connect the nutrient tank to the system.

6. Fill the System

Add water to the system.

Maintenance Tips:

  • Maintain a 50-75cm center distance between each pot.
  • Alien Hydroponics recommends a watering frequency of one minute every hour.
  • Regularly check the filter for debris.
  • Use ROOT ROT X™ to sterilize and keep roots healthy.
  • Flush the system between crop cycles with clean water and disinfectant.
  • Inspect sprinklers to ensure proper misting and water distribution.

Support & Manuals

Warranty

The ALIEN RAIN Top-Feed System is covered by a one-year manufacturer's warranty for your peace of mind.

FAQs

What growing medium can I use with the RAIN system?+

The RAIN system is highly versatile and compatible with various growing mediums, including soil, coco coir, clay pebbles, and rockwool. Its top-feed design effectively prevents salt buildup, making it suitable for a wide range of substrates.

Is this system difficult for a beginner to set up?+

Not at all. The RAIN system is designed for easy, tool-free assembly. It features threaded fittings and snap-on pipes, eliminating the need for glue and making the setup process straightforward for growers of all experience levels.

Does the kit include a nutrient reservoir?+

No, the nutrient reservoir (tank) is not included with the kit and must be purchased separately. This allows you to choose a tank size that best fits your space and growing needs. We recommend a tank with a minimum capacity of 30 gallons (120 liters).

How does this system prevent root rot?+

The system prevents root rot in several ways. The 'rain' effect washes away excess mineral salts, the sloped base and raised drainage grid ensure rapid and efficient draining to prevent waterlogging, and the Dual-Flow™ fittings maintain a healthy, free-flowing environment.

Can I expand this 4-pot system later on?+

Yes, all Alien Hydroponics systems are designed to be modular and scalable. You can easily expand your setup by adding more pots or reconfiguring the layout as your garden grows. We offer various kits, including the 6 Pot RAIN System, to accommodate larger grows.

What's the difference between the RAIN and an RDWC system?+

The main difference is the hydroponic method. The RAIN system is a top-feed drip system that mimics rainfall, making it ideal for mediums like coco or soil. In contrast, an RDWC (Recirculating Deep Water Culture) system submerges the roots directly in a highly oxygenated nutrient solution, which is better suited for soilless grows with minimal medium.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

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