AutoPot - FlexiTank 25L foldable water barrel

The AutoPot FlexiTank 25 Litre is the smallest tank in the range, and that is exactly what it is good at. Filled, it measures 30 cm across. That lets you put it where an ordinary barrel simply will not go: between two pots, in the corner of a small growing space, or beside a single plant you top up by hand.

Why diameter matters more than capacity here

With a small tank the instinct is to look at the litres. In practice the footprint decides whether you can house it at all. Thirty centimetres is narrower than most 25 litre growing pots, so this tank fits the space that is left over rather than forcing you to plan around it. At 37 cm tall the tap stays reachable without tipping the tank, and a watering can still slides underneath.

Where this size earns its place

Twenty-five litres covers a small setup for several days of hand watering, or lets mixed nutrient solution stand overnight before you use it. It is not a tank for running a system unattended for weeks: for that, look at 100 litres and up. It is the size at which you stop carrying buckets.

Assembled in minutes, no tools

The tank arrives folded in a flat box 36 cm long. Open it out, click in the tap and the overflow fitting, and fill. The seams are sealed and watertight, and the material is rated for indoor and outdoor use. Empty, it folds back down to something that fits in a drawer.

Technical Specifications:

• Capacity: 25 litres
• Dimensions when filled: 30 cm diameter x 37 cm high
• Boxed dimensions: 36 x 16 x 13 cm
• Boxed weight: 1.3 kg
• Supplied with: tap with click fitting, overflow connector, manual
• Suitable for: indoor and outdoor use

Frequently asked questions

Will it fit a 60 by 60 cm grow tent? At 30 cm across it physically fits a corner, but it leaves little room for plants. In a tent that size the tank usually sits outside with a line run in.

Can I leave it standing when empty? Yes. It stays upright empty, though it partly collapses. Fold it away when you need the space.

Can I move it with water in it? No. On any collapsible tank, dragging or pulling a filled tank puts the load straight onto the seams. Position it empty and fill it in place.

Is the material safe for nutrient solution? Yes, the tank is intended for water and mixed nutrient solution, indoors or out.