Pond Liners & Protective Underlay | J H Aquatics – southcoast koi and aquatics

Pond Liners And Underlay

The foundation of any successful water feature starts with our Pond Liners And Underlay collection. Choosing a high-quality liner is the most critical decision in pond construction, as it provides the primary waterproof barrier that ensures your pond remains leak-free for decades. We supply a range of materials, including professional-grade EPDM Rubber and Butyl, known for their incredible flexibility and UV resistance.

To protect your investment, we always recommend the use of a heavy-duty Pond Underlay. This geotextile fabric acts as a defensive cushion between the liner and the ground, preventing punctures from sharp stones, roots, or debris. Whether you are building a small decorative feature or a large-scale koi pond, our liners and underlays provide the durability and peace of mind required for a professional installation.

Product Specifications

Liner Materials: Premium EPDM (Ethylene Propylene Diene Monomer), Butyl Rubber, and reinforced PVC.
Underlay Grade: Non-woven, high-density geotextile protective fabric (available in various weights).
UV Resistance: Fully UV-stabilised materials designed for 20+ years of exposure.
Flexibility: High elongation properties to conform to complex pond contours and shelf designs.
Fish Safety: 100% non-toxic and certified safe for all aquatic life and plants.

Calculating the correct size is essential for a smooth installation. For a pond with a surface area of 12m², you must account for the depth and perimeter overlap to ensure a secure fit. At J H Aquatics, we offer Custom Cut Liners and Pre-Packed Rolls to suit projects of any scale, ensuring your aquatic environment stays watertight and healthy.