Swell Pond Liner - Black
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OnBuy.comSwell Uk (7X9m) 25 Year Guarantee Heavy Duty Pond Liner
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Product Information
Full details
The Swell HDPE Pond Liner is an ideal choice for both novice pond builders and experienced hobbyists looking to create a durable foundation for garden, fish, or koi ponds. Crafted from 0.35mm high-density polyethylene, this liner provides a reliable barrier against leaks while resisting UV damage and environmental chemical exposure. While it offers excellent longevity, users should be aware that a protective underlay is required for the full 25-year performance lifespan and must be purchased separately.
All features
| Colour | Black |
|---|---|
| Brand | Swell |
Extended Product Information
FAQs
Do I really need an underlay?
Yes, an underlay is essential to protect the liner from roots, stones, and sharp soil objects, which significantly increases the lifespan of your pond.
Can I use this for a koi pond?
Yes, the Swell HDPE liner is non-toxic and safe for both fish and aquatic plants.
Is the liner repairable if it gets punctured?
While the material is durable, punctures can be repaired using a compatible HDPE-specific pond liner repair kit.
How do I calculate the size I need?
A standard rule of thumb is to take the maximum length + twice the depth + 1 meter for overlap, and the same for the width.
Can this be used in freezing temperatures?
HDPE is designed to be robust; however, avoid walking on or adjusting the liner during freezing temperatures as the material can become stiff.
Troubleshooting
Liner appears to have a leak
Check the perimeter for water loss due to capillary action caused by debris bridging the liner edge, or inspect the bottom for sharp rocks that may have been missed during the underlay installation.
Difficulty getting the liner to lay flat
Remove the liner and ensure the base of the pond is completely smooth. If pleats are unavoidable, fold them neatly against the wall of the pond and weight them down with decorative stones.
Pros and Cons
Pros
- High resistance to UV rays and chemical breakdown
- Flexible enough for various pond shapes and contours
- Heavy-duty 0.35mm thickness for puncture resistance
- Cost-effective solution for large-scale pond construction
- Long 25-year expected lifespan
Cons
- Protective underlay must be purchased separately
- Requires careful installation to prevent accidental tears
- Material thickness may be heavier to maneuver for very large ponds
Setup, Compatibility & Care
- Prepare the Site: Clear the pond area of sharp rocks, roots, and debris that could damage the material.
- Install Underlay: Always lay a geotextile underlay before the liner to prevent puncturing from underneath.
- Placement: Gently lay the liner over the pond, working from the center outward to ensure it contours to the shape.
- Edging: Secure the edges with boulders, flagstones, or a formal stone border to lock the liner in place.
- Maintenance: Periodically check the edges of the liner for shifting or signs of UV damage after several years of extreme weather exposure.