Gordon Low Pond Liner Underlay - 5m x 2m

Name: Gordon Low Pond Liner Underlay - 5m x 2m
Brand: Gordon Low
SKU: ntgqy6u27c
Availability: InStock

Gordon Low Pond Grade Pond Underlay is essential for all flexible pond liner installations. This s...

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Product Information

Full details

The Gordon Low Pond Liner Underlay is designed for pond enthusiasts and landscapers who want to ensure the longevity and structural integrity of their flexible pond liners. This high-quality, non-woven, needle-punched geotextile acts as a vital protective layer, shielding your liner from punctures caused by sharp stones, roots, and debris. While it offers superior protection and stability compared to traditional sand bedding, users must carefully measure their pond excavation area to ensure the 5m x 2m sheet size provides adequate coverage for their specific project dimensions.

All features

Model Part Number	UPG2M5
Brand	Gordon Low

Extended Product Information

FAQs

Do I really need pond underlay?

Yes, underlay is highly recommended. It prevents punctures from stones and roots that can cause expensive leaks in your pond liner.

Can I use sand instead of this underlay?

While sand is traditional, geotextile underlay like this one is superior because it won't shift, wash away, or cause instability under the liner.

How do I join two sheets together?

Simply overlap the sheets by at least 15cm. The pressure of the water will keep them securely in place during and after filling.

Is this safe for fish and aquatic plants?

Yes, this material is non-toxic and chemically inert, making it perfectly safe for all fish, plants, and pond wildlife.

What is the weight of this underlay?

It is a standard pond-grade geotextile designed to be lightweight enough for easy handling while providing heavy-duty puncture resistance.

Troubleshooting

Underlay feels thin in certain areas

If the excavation is extremely rocky, consider doubling up the underlay layers in high-stress zones for added padding.

Underlay shifts during pond liner installation

Use large landscaping staples or smooth-headed pins to anchor the underlay to the soil until the pond liner is positioned and filled.

Pros and Cons

Pros

Significantly reduces the risk of leaks and punctures
Easier and cleaner to install than sand or carpet padding
Mechanically bonded fibers offer high tensile strength
Adapts easily to the contours of your pond excavation

Cons

Fixed sheet dimensions of 5m x 2m may require joining for larger ponds
Requires careful planning to avoid gaps in coverage
Must be purchased in appropriate quantities based on pond surface area

Setup, Compatibility & Care

To install, clear the pond area of any obvious sharp debris. Roll out the underlay along the floor and sides of the excavation, trimming any excess with a sharp utility knife if necessary. Ensure the material is pressed firmly against the corners to avoid air pockets. This underlay is compatible with most EPDM and PVC flexible pond liners. For care, once the liner is installed and the pond is filled with water, the underlay remains protected from UV light and environmental wear, requiring no maintenance throughout the life of the installation.