Pond Liner Underlay Heavy Duty Geotextile Fleece

Pond liner underlay is designed to protect your pond liner from punctures caused by stones, roots and rough subsoil. By adding a cushioned barrier between the ground and your liner, it helps reduce the risk of leaks and supports a longer-lasting pond installation.

Made from tough, interwoven geotextile fleece, the underlay is flexible and easy to position as you shape the base and sides of your pond. It provides dependable protection where the ground is uneven and helps safeguard your pond investment.

Use it beneath most common pond liners when building new ponds, renovating existing ponds, or creating water features and wildlife ponds. It is particularly useful in gardens with stony ground or where roots may be present.

Choose the size that best matches your pond layout and allow extra material to cover contours and edges during installation. Pairing a suitable underlay with your liner can also help protect pond equipment by reducing the chance of sudden drainage caused by liner damage.