AutoPot - 25 Gallon FlexiTank Pro

AutoPot FlexiTank Pro 25 Gallon for a Bright, Warm Grow Room

This is a soft-walled nutrient reservoir that stands on its own internal frame and holds 25 gal (100 L) of water or feed. Filled, it measures 19 in across and 27.5 in tall, a footprint that tucks into the corner of a tent or beside a bench. The outer skin is reflective and light-tight, so no light reaches the solution inside. That matters most in a greenhouse or a hot, bright room, where light on stored feed encourages algae and warms the mix. Six support poles seat in a bottom ring and lock to the top ring with three nuts, which keeps a full tank standing. Those poles live inside the skin, so the outside stays smooth and the anti-tip stance does the rest. Capacity lines are printed on the inside wall. They let you dose nutrients against a known volume instead of guessing from the hose. The tank is built from food-grade materials, and the outlet tap ships with two rubber washers and a locking nut. Flat-packed, the kit travels in a box of about 20.1 x 20.1 x 5.1 in that weighs 8.4 lb. AutoPot backs it with a 1 year manufacturer warranty.

Setting Up a Collapsible Water Reservoir Beside AutoPot Trays

Assembly takes a few minutes and needs no tools, working through the zippered top to reach inside. Push the tap through the outlet hole with a washer on each side, then hand-tighten it upside down so it stays shut. Set the frame on a smooth, flat surface and half fill it with water before twisting the tap upright. After that, top it up to the working level. On an AutoPot run, the tank base must sit at least 6 in above the highest AQUAvalve, so a sturdy stand usually goes under it. It connects through a 1/2 in click-fit inline filter or click-fit pro filter, or a 1/2 to 3/8 in inline filter on a 3/8 in main line. On a raised tank, fit that filter a short way down the line rather than right at the tap, which takes strain off the skin. Check the level often in a warm flowering room, because a handful of big plants can draw a small tank down quickly. The trade-off of a soft-walled hydroponic reservoir is that it cannot be shifted while it holds water. Never drag it full; drain it completely, and it collapses back into its box between crops.

Key Features

• Reflective, light-tight skin: Keeps light off the stored solution, which limits algae and heat gain in a bright room.
• Concealed support poles: Six poles inside the skin give the filled tank an upright, anti-tip stance.
• Internal capacity markings: Printed lines show the volume, so nutrient doses are measured rather than estimated.
• Collapsible, tool-free build: It goes up in minutes and folds flat into its box at the end of the season.
• Food-grade construction: The tank is made for holding water and nutrient solution.
• Outlet tap included: The tap comes with two rubber washers and a locking nut for a sealed fit.

Technical Specifications