Flexible Water Tank – Collapsible Portable Storage Solution

A Flexible Water Tank (also called a bladder tank or pillow tank) is a portable, collapsible water storage system made from high-strength materials. Ideal for boats, RVs, off-grid locations, and emergency setups, it stores freshwater, greywater, or rainwater safely and conveniently.


Key Features:

  • Material: Food-grade PVC, TPU, or reinforced polymer fabric

  • Flexible Design: Easily folds when empty, expands when filled

  • Lightweight & Portable: Easy transport and storage

  • Leakproof & UV-Resistant: Designed for outdoor and rough environments

  • Multiple Fittings: Includes inlet, outlet, air vent valves – compatible with hoses and pumps

  • Capacity Range: Available from 50L to 50,000L+

  • Temperature Resistance: Typically -30°C to +70°C


📐 Sample Specifications (500L tank):

  • Material: 1.0mm PVC or TPU (FDA-approved for potable water)

  • Capacity: 500 liters

  • Dimensions (filled): Approx. 120 cm x 100 cm x 40 cm

  • Weight (empty): ~6–8 kg

  • Fittings: 1” inlet/outlet with screw caps or quick-connects

  • Color Options: Blue, green, grey, black


🚢 Applications:

  • Freshwater storage on boats or ships

  • Emergency and disaster relief

  • Agriculture and irrigation

  • Rainwater harvesting

  • Camping and remote work sites

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