Chonway 15x20 ft Heavy Duty Pond Liner Underlayment – 200g Non-Woven Geotextile Fabric

Overview

Meet the Chonway 15x20 ft Heavy Duty Pond Liner Underlayment, a thick 200 g/m² non-woven geotextile designed to shield your pond liner from the terrain beneath. It acts as a protective cushion between the liner and soil, gravel, and roots, helping to create a more even surface under your water feature.

In practical terms, this underlayment can reduce punctures from sharp stones, wood debris, and other hidden hazards. It is breathable, so it allows moisture to escape and air to circulate while still filtering soil particles that could clog underdrains or pipes.

Why it matters

• Protective cushioning reduces the chance of punctures over time.
• Even weight distribution helps prevent liner sag and displacement, supporting overall stability.
• The 20x15 ft sheet is easy to cut to fit irregular ponds and is compatible with EPDM, HDPE, LLDPE, RPE, LDPE, and PVC liners.

Key benefits at a glance

• Resists rodent burrowing and gnawing while remaining breathable and permeable.
• High tensile strength and abrasion resistance for durable use in outdoor landscapes.
• Breathable design helps keep debris from building up in pipes and underlayers.
• Versatile for koi ponds, garden ponds, water gardens, hydroponic liners, French drains, and erosion control.

Usage ideas: unroll the fabric, trim to fit, and lay it under the liner before filling. The thoughtful balance of protection, flexibility, and airflow makes it a practical component for many pond and landscape setups. Whether you are building new or refreshing an older installation, this underlayment aims to support long-term performance without locking you into a single liner choice.