Pond Liners & Supplies | Hydro Experts
Build a reliable, long-lasting pond with premium pond liner solutions from Hydro Experts. Whether you’re creating a backyard water feature, koi pond, wildlife habitat or aquaponics system, the right liner is essential for watertight performance in Australian conditions. Our range suits both DIY installs and professional pond builds, with options designed to handle movement, UV exposure and everyday wear.
Choose from EPDM & PVC Pond Liners for flexible, durable pond lining across a wide range of shapes and sizes. EPDM pond liners are popular for their flexibility and longevity, while PVC pond liners offer a practical option for lighter-duty builds. Pair your liner with the right thickness and fit to help minimise folds and reduce leak risks over time.
For maintenance and troubleshooting, we stock Pond Liner Repair Kits as well as Pond Sealers & Adhesives to patch punctures, reinforce joins and seal fittings. These essentials make it easier to fix small issues before they become bigger leaks - ideal for established ponds, filtration upgrades or new plumbing penetrations.
Protect your investment with Pond Underlays, designed to cushion and shield liners from rocks, roots and uneven ground. Underlay helps extend liner life and is highly recommended for new pond construction and renovations. Shop pond liners online at Hydro Experts for dependable pond-building gear delivered Australia-wide.
Pond Liners by Category
ON SALE
PondMax Pond Liner Joining Heavy Duty Tape - 45MM x 15M | Double Sided Butyl Tape
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The Ultimate Guide to Pond Supplies: Transforming Your Garden into a Serene Oasis
1) How do I install an EPDM rubber pond liner?
For best results, shape the pond hole with smooth shelves, remove sharp stones/roots, then lay a pond underlay across the base and sides. Unfold the EPDM pond liner and position it loosely (don’t stretch it), allowing it to settle into contours. Part-fill with water to help the liner conform, then tidy folds and backfill around the edges. Finally, secure the perimeter with edging, pavers or coping stones and trim excess once the liner is fully seated.
2) How do I repair an EPDM pond liner in Australia?
Drain below the leak and clean the area thoroughly (remove algae, dirt and moisture). Use a dedicated pond liner repair kit designed for EPDM, apply primer if required, then patch with the correct tape/patch material and firm pressure. For seams, fittings and tricky areas, use suitable pond sealers & adhesives. Always allow recommended cure time before refilling - especially important in hot Australian weather.
3) What’s the difference between EPDM and PVC pond liners?
EPDM pond liners are rubber-based, highly flexible and known for long service life—great for irregular shapes and long-term koi ponds. PVC pond liners are typically lighter and can be more cost-effective for smaller ponds or simpler builds. In Australian conditions, consider UV exposure, liner thickness and how much flexibility you need for curves and shelves when choosing between EPDM vs PVC.
4) What thickness pond liner do I need for my pond?
The right pond liner thickness depends on pond size, depth, soil conditions and whether you’re installing in-ground or above-ground. Deeper ponds, rocky ground, heavy foot traffic around edges and koi ponds usually benefit from a thicker liner plus pond underlay. For smaller backyard ponds or lightweight features, a thinner liner may be suitable, but underlay still helps prevent punctures.
5) Do I need a pond underlay under my pond liner?
Yes - using a quality pond underlay is one of the best ways to protect your pond liner from punctures caused by rocks, roots and uneven ground. Underlay also helps the liner sit more smoothly, reducing stress points over time. It’s recommended for both EPDM and PVC pond liners, especially for Australian backyards where soil can shift and tree roots are common.