IWS Flexi Tank Without Pipes & Pump

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  • Flexi Tank – a brilliant solution for water storage
  • A great replacement for a damaged outer shell
  • The perfect accompaniment to IWS set-ups
  • Packs flat for easy transportation and storage
  • Can be used in places that rigid plastic tanks won't go
  • Easy to assemble – takes minutes

IWS Flexi Tank Without Pipes or Pump

The perfect replacement for a Flexi Tank with a damaged outer shell. Please note that, unfortunately, we no longer stock the irrigation fittings required to use this tank with an IWS System. Only buy it if you already have the parts or you wish to replace another damaged outer shell.


Please note: Our grow systems are designed to provide years of trouble free use, having undergone rigorous testing and development. However, at One Stop Grow Shop, we believe that it's good practice to take a few simple precautions that will reduce the risk of leakages to practically zero. For complete peace of mind, secure pipework that's joined onto barbed fittings using jubilee clips or cable ties, and place run-off trays / floor secure sheeting underneath the system & reservoir. It's much better to be safe than sorry.

Hose clip for use with 13mm flexi pipe

Hose clip for use with 25mm pro flexi pipe

Run-Off & Work Trays

Floor Secure Sheeting


How the Flexi Tank Works

Rigid plastic reservoirs can be awkward to store, transport and get into certain places. The Flexi Tank is a simple and elegant solution to those problems. The main tank fabric is made from thick, strong and flexible material with a zippered lid and the whole thing folds up flat, like a tent, for easy storage. The five support legs slide easily into ready-made vertical slots in the fabric and hold the Flexi Tank in shape vertically.

To see our full Flexi Tanks & Reservoirs range, click here


1 x Flexi Tank waterproof fabric reservoir,  support legs

Choose from 100 litre, 250 litre, 400 litre and 750 litre sizes

How to Use the Flexi Tank

Unroll the Flexi Tank fabric and slide each of the 5 support legs up into the vertical slots located around the side-wall. The Flexi Tank will need to be used with separately available irrigation fittings and a full tank assembly to be utilized as part of an IWS setup. Irrigation fittings can be purchased HERE. The tank assembly from your old reservoir can then be transferred over to your new Flexi Tank.


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