Underlay
A tough underlay is essential to protect your pond liner from sharp edges and other problems.. We recommend digging your pond before buying your underlay to make sure you get the right size, or using or handy calculator to check your sums. The liner can always be cut down to size.
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What Is Pond Liner Underlay and Why Is It Important?
Pond liner underlay is a protective layer placed underneath your pond liner to provide a cushion between the liner and the ground. Made from durable, non-woven geotextile material, the underlay helps prevent damage to the pond liner by acting as a barrier against sharp objects, roots, and uneven surfaces that could puncture or tear the liner. Using an underlay is crucial for extending the life of your pond liner, ensuring that it remains intact and watertight. It also adds a layer of insulation, helping to protect the liner from temperature fluctuations and ground movement.
How Do I Install Pond Liner Underlay?
Installing pond liner underlay is a straightforward process that significantly enhances the durability of your pond liner. After excavating your pond and ensuring the surface is free of sharp objects, roll out the underlay across the entire pond area, including the sides and bottom. The underlay should be laid smoothly with some overlap at the seams to ensure complete coverage. Once the underlay is in place, you can position your pond liner on top, allowing it to conform to the contours of the pond. This simple step provides essential protection and contributes to a long-lasting, watertight pond.