Pre-OrderFlexiPot 36-Pot System with 400L Tank - 50L Fabric Pots
£1,394.96£1,549.95Save £154.99
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Description
FlexiPot 36-Pot System with 400L Tank – 50L Fabric Pots is a large-scale, gravity-fed irrigation system designed for serious growers who want reliable, fully automated watering across a big grow space. Using AutoPot’s AQUAvalve technology, it feeds each pot precisely when required—no electricity, timers, or pumps needed. The 50L breathable fabric pots provide extensive root space and natural air pruning for maximum growth, while the 400L FlexiTank offers a generous nutrient supply for long, maintenance-free irrigation cycles.
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Complete 36-pot setup – Includes 36 x 50L FlexiPots, trays, AQUAvalves, 400L FlexiTank, and all fittings and pipework.
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Automatic watering control – AQUAvalve maintains perfect moisture levels by delivering water only when the plants need it.
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Massive 400L reservoir – Reduces refill frequency and provides stable feeding for large-scale grows.
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Extra-large 50L fabric pots – Ideal for big plants requiring greater root depth and nutrient access.
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Air-pruning root technology – Encourages dense, fibrous root systems and prevents circling for healthier plants.
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Energy-free operation – Runs entirely on gravity—no power, pumps, or timers required.
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Expandable and modular – Connect to additional pots or systems as your setup grows.
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Recommended setup – Mix nutrients in the tank, elevate slightly above pot level, and keep AQUAvalves level and clean for consistent results.
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Made by AutoPot – UK-engineered for professional reliability, efficiency, and ease of use.
Delivering even watering, vigorous root development, and true hands-free automation, the FlexiPot 36-Pot System with 400L Tank offers a professional-grade, low-maintenance solution for growers aiming for consistently high yields.
Key facts
| Type | Gravity-fed self-watering system: no pump, no timer, no electricity |
|---|---|
| Pots | 36 x 50 litre fabric FlexiPots |
| Tank | 400 litre FlexiTank |
| Valve | AQUAvalve supplies water and feed only when the plant needs it |
| Expandable | Connects to extra pots or systems |
| Make | AutoPot, UK |
| Brand | Autopot |
| Maker's part number | APXXL/50L/36 |
| Product code | 11187 |
| Category | Autopot FlexiPot Systems (20l) |
How to use
Mix the nutrients thoroughly in the tank and stand the tank slightly above the height of the pots, so the flow stays steady. Keep every AQUAvalve level and clean so it opens and closes properly.
The fabric pots let air in all round the root ball and stop roots circling. Extra pots and spares are in FlexiPot accessories and parts. Other pot sizes and system sizes are in AutoPot FlexiPot systems.
What’s in the box
- 36 x 50 litre FlexiPots
- Trays
- AQUAvalves
- 400 litre FlexiTank
- All fittings and pipework
Questions
Does the FlexiPot system need electricity?
No. It runs on gravity, and the AQUAvalves feed each plant on demand without pumps or timers.
Where should the tank go?
Slightly above the height of the pots, so the solution flows down to the valves.
Can I add more pots later?
Yes. The system is modular, so extra pots or systems connect to it.
Which pot size should I choose: 20, 35 or 50 litres?
The 50 litre pots give the most root space and suit large plants. The same systems come with 20 and 35 litre pots for smaller plants.
Growers’ guides
- Autopot Systems Explained: How They Work and Which to BuyHow Autopot works without pumps or power, which system and pot size suits your space, what to grow in, and how to set it up.
- Fabric, Air-Pot or Plastic Pots? How to Choose (and What Size)Air-Pots, fabric pots and plastic pots compared: how air-pruning works, which dries out fastest, and which size for seedlings, mothers and big plants.




