Heavy Duty Pond Liner Underlayment for Ultimate Protection

Ensure the longevity of your pond liner with this Heavy Duty Pond Liner Underlayment, designed to provide robust protection against punctures caused by sharp objects. Crafted from high-quality polypropylene fibres, this durable 170gsm underlayment is favoured by Certified Aquascape Contractors in Australia and offers the ultimate shield for your pond liner.

Features and Benefits

  • Exceptional protection: Guards your pond liner against sharp objects and potential punctures, ensuring it remains intact and leak-free.
  • High-quality materials: Made from premium polypropylene fibres, needle-punched to create a dimensionally stable fibre network.
  • Versatile usage: Can be placed as a pad beneath heavy rocks, boulders or statues, offering reliable and long-lasting protection.
  • Gaseous build-up prevention: Effectively wicks away unwanted moisture or gas buildup from beneath the liner.
  • Customisable sizing: Can be cut to your desired square meter dimensions for a perfect fit in your pond project.

How to Use

  1. Begin by measuring the size of your pond liner and determining the necessary dimensions for the underlayment.
  2. Cut the underlayment to size, ensuring you maintain a consistent width throughout.
  3. Place the underlayment below the pond liner, ensuring it covers the entire area and is in direct contact with the liner.
  4. If needed, use the underlayment as a pad beneath heavy rocks, boulders, or statues for additional protection against puncture risks.

Aqua Gardening Suggests These are Best For

This Heavy Duty Pond Liner Underlayment is ideal for pond owners looking to protect their pond liners from potential damage brought on by sharp objects, rocks, or statues. By providing exceptional protection and ensuring the longevity of the liner, this underlayment is a must-have investment for all pond enthusiasts or landscape professionals.

Notes from Aqua Gardening

  • The 170gsm underlay is available in 4-metre width only. Set sizes can be found in the Size options above.
  • When cutting the underlayment, make sure to use sharp scissors or a utility knife for clean and precise cuts.
  • Store any unused underlayment in a cool, dry place, away from direct sunlight.


What is the purpose of the Heavy Duty Pond Liner Underlayment 170gsm?

The Heavy Duty Pond Liner Underlayment 170gsm is designed to protect your pond liner from sharp objects that may risk puncturing it. It is made from high-quality polypropylene fibers and is used by Certified Aquascape Contractors in Australia.

How does this underlayment protect the pond liner?

This geotextile layer creates a stable fiber network that protects the pond liner from sharp objects both above and below. It can be placed as a pad to provide extra protection beneath heavy rocks, boulders, or statues. It also wicks away unwanted moisture or gas build-up from beneath the liner.

How wide is the Heavy Duty Pond Liner Underlayment?

The 170gsm underlayment is available in 4-meter width.

Can I cut the Heavy Duty Pond Liner Underlayment to fit my desired dimensions?

Yes, you can cut the product to your desired square meter dimensions, making it easier to prepare an excavation or place rocks and boulders.

Is the underlayment suitable for all types of pond liners?

The Heavy Duty Pond Liner Underlayment is designed to offer durable protection for various types of pond liners, ensuring that you can confidently use it for your specific pond project.

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(SKU: 131341)

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