AutoPot FlexiTank 25 Gallon | Collapsible Reservoir, 17 x 29.5 in

Where the AutoPot FlexiTank 25 Gallon Fits

This is the small one, and its whole argument is footprint. Filled, it stands 29.5 in high on a circle just 17 in across. It slides into the corner of a tent where a rigid drum would never go. It ships flat in a box of about 31 x 7 x 5 in at 5 lbs, then assembles to roughly 9.5 lbs empty with no tools involved. A tap outlet is built into the base for gravity feed. Full, it is holding about 208 lbs of water, which is worth knowing before you set it on a shelf or a mezzanine floor. The tall narrow shape is deliberate. Height is what gives an AutoPot system its gravity head, and a wide shallow tank of the same volume would not feed as well.

Running a 25 Gallon Water Tank on a Gravity System

Gravity fed watering only works if the tank sits above the valves it feeds, so plan the stand before the tank. AutoPot asks for the outlet to be raised a minimum of six inches above the highest valve in the run. In practice most growers go higher than that. Head pressure drops as the level falls, and the last third of a tank is the slow part. Refill when about a third is left rather than running it dry. An inline filter belongs in the line. Sit it away from the tap rather than hard against it, so the tubing is not under tension at the fitting. Where this size runs out of road is a room with real irrigation volume. Four large plants in flower will empty it in a couple of days. At that point the refill routine costs more time than the compact footprint saves. It suits a tent, a propagation bench or a holiday two week absence far better than a production room.

Key Features

• 25 gallons in a 17 in circle: Stands in a tent corner where a rigid drum of the same volume would not fit.
• 29.5 in of height: Gives the gravity head an AutoPot run needs without a tall stand under it.
• Folds flat: Packs into a box around 31 x 7 x 5 in, so it stores on a shelf between seasons.
• Tool free assembly: Goes up in minutes with nothing but your hands, and comes down just as fast.
• Built in tap outlet: Feeds a gravity line directly, with no pump and no power at the reservoir.
• About 9.5 lbs empty: Light enough for one person to move and reposition before it is filled.

Technical Specifications