14 x 14 FT Pond Liner, 20 Mil Fish Pond HDPE Liner, Pond Liners for Outdoor Ponds, Koi Ponds, Garden Fountain, Waterfall

This was a good investment. My son created a koi pond in our yard using this liner. It is really thick and did the trick beautifully. It moulded to the shape he dug out so it created the look he wanted.

Durable, value for money and is material is flexible enough to work with and shape.

Very heavy and lays nicely!

overall it is working as intended I did find that it was not very flexible. while trying to install making the corners bunch up. but overall it is working as intended

Using this to collect and channel rainwater water into a small reservoir, it is highly functional and rugged too with no apparent UV damage so far.

Good

I bought this HDPE “pond liner” because the reviews seemed decent and the price looked great. Unfortunately, it turned out to be a big mistake. Mine started leaking almost immediately. I don’t know the exact cause, but the material tears very easily, and once there’s a leak, it’s almost impossible to find—let alone fix. HDPE can’t be glued, which makes repairs extremely difficult. You need special equipment and heat-sealing skills, and you definitely can’t do that underwater. With proper pond liners, you can at least use underwater patch kits. Not here. Looking back, I realize that trying to save money on the liner was the worst place to cut costs. Building a pond is a major investment of time, labor, and planning. If the liner fails, the whole project fails. This product simply isn’t flexible or elastic, has very low tensile strength, and cracks or punctures far too easily. In my experience, it behaves more like a basic tarp—fine for covering something, but not for holding water long-term. Maybe this material was originally intended for something else and is just being marketed as a pond liner, but for a real fish pond, I cannot recommend it. Save yourself the frustration and spend a bit more for a proper, high-quality liner with a real warranty. Stay away from this one.

I would definitely buy this product again. It is thick and durable. Not to mention it's really easy to maneuver when you are shaping it to your pond walls. I was afraid that the Rocks might cut it but I had no problems.