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Wētā Dam Bags - 6 Pack

Original price $66.00+gst - Original price $66.00+gst
Original price
$66.00+gst - $66.00+gst
Current price $66.00+gst

The Wētā Dam sack is an eco-friendly and 100% biodegradable replacement of the traditional sandbag to control the flow of water.

Comes in a pack of six.

Our bags are made of jute which means they soak the water quicker than some nylon alternatives. They're nice and heavy too - swelling to roughly 20kgs. When activated the sack’s height is approximately 15-18cm.


  • Pre-soak the Wētā Dam sacks for approximately 5 minutes to activate. Sack will swell to a weight of approximately 20kgs.
  • Alternatively, you can place the sacks, partially absorbed or dry, into position. Place a weight on top to secure the sack.
  • The dry, or partially dry, sacks will swell upon contact with rain or the breaching water.
  • When positioning the Wētā Water Barriers ensure the ends are firmly against the adjoining barrier to avoid leakages.
  •  When stacking for height to accommodate the volume of water, ensure the sacks are staggered when placed on top of one another to strengthen your barrier wall.
  • Suitable for housing, river banks, streets, basement, underground parking lots, warehouses etc.

Storage after use:

  • The Wētā Dams can keep their effectiveness for at least 2 months while remaining wet. 
  • To dry out the sacks, keep outside in the shade. For optimal drying allow for 2-3 months. Keep out of direct sunlight. 
  • Shelf life- at least 4 years
  • The used Wētā Water Barrier can be reused, however, the speed and efficiency is not as productive as the initial use. 


  • Standard size is 600x400mm. When activated the sack’s height is approximately 15-18cm and roughly 20kgs.


  • Exterior:  natural jute. Lining: 100% cotton sheet. Filling: Super Absorbent Polymer (SAP).
  • Jute sacks are eco-friendly and 100% biodegradable.
  • Jute bags are strong, practical and reusable. 

Weight and package:

  • SAP powder content: 180g per Jute SAP Bag 
  • Total Jute SAP sack weight: 
  • 0.5±0.02kg (before absorbing water) 
  • 20±1kgs (after absorbing water) 
  • Compressive strength: 180kg plus.