2500 Litre Underground “Nugget” water tank

  • Width 1260mm
  • Length 2500mm
  • Height 1140mm


Sometimes installing a Round water tank or a slimline rainwater storage tank beside your house may be ideal especially if you are looking for a convenient way to store rainwater. However, the 2500 litre Underground “Nugget” water tank from Poly Water Tanks is what you need to get when space is an issue.

This is an ideal water storage system that works better for home owners who have a limited space as this is one of the narrowest underground tanks available. You can install it under the concrete driveway or your garden and all you will see is the access inspection plate—another good reason why you need this.

There is more that makes this underground rainwater tank popular than its convenience. Just like the above ground rain water storage tanks, this one also offers durability even when installed under a driveway.

If you intend to install your 2500 litre Underground water Tank on a sloping site or under a concrete driveway, make sure you fit it with the 300mm adjustable riser. And to enjoy the full benefits of this product, use a submersible pump. The most recommended are Claytech Submersible pumps and Aquasaver change over switch.


  • Width 1260mm
  • Length 2500mm
  • Height 1140mm

Standard fittings:

  • 100mm PVC inlet
  • 100mm PVC overflow
  • 25mm poly pump outlet
  • 20mm pvc electrical grommet
  • 300mm inspection plate