UWIOFF Pond Liner, 20 Mil 7 x 10 Feet Pond Liners for Outdoor Ponds, Black HDPE Fish Pond Liner for Koi Ponds, Streams Fountains and Garden Waterfall

As a home gardener who has experimented with a lot of different methods, I've found that sometimes the best tool for the job isn't the one it was originally designed for. That's the case with the UWIOFF 10 x 13 FT Pond Liner. While it's marketed for ponds, it turned out to be the perfect material for building a large self-watering garden bed. My project required a liner that was durable, completely waterproof, and manageable to install in a confined space. The 20 Mil thickness of this liner was the key. It was thick enough that I wasn't worried about it getting punctured by tools or rocks, but still flexible enough to be folded and molded into the shape of the raised bed without a lot of struggle. I was able to get clean corners and edges, ensuring a tight seal for the water reservoir at the bottom of the bed. The generous 10 x 13-foot size gave me plenty of material to work with, allowing for a good overlap and a comfortable margin of error. The liner has held up perfectly. It contains the water effectively, and after an entire growing season, there are no leaks or signs of wear. The black color also helps absorb a little bit of heat, which is a bonus in my cooler climate. For anyone looking to create a large-scale self-watering system for their garden—whether it's a sub-irrigated planter or a wicking bed—I can't recommend this product enough. It's a reliable, heavy-duty solution that delivers on its promise of being completely waterproof and durable. Don't be afraid to think outside the box; this pond liner is a fantastic choice for your next garden project.

Used this as an underlayment for waterfall. A little stiff, but not bad if left in sun for a while. Has held up great here in North Texas with hot summers, and crazy winters. Owned for 3 years, and no leaks.

I used this to line my raised beds on my balcony. It went above and beyond my expectations. It is incredibly strong and heavy so I knew the quality was high. It did a great job at doubling as a raised bed liner. It took a staple gun just to make it stay in the wood and it never budged. It protected the wood of the beds as the water just rolled off of it right into the soil. It was very easy to use after measuring the length and width. Will definitely recommend this product to anyone who wants to take the route I did.

We purchased as base material to re-line our bird baths (two). Material was relatively easy to trim. Used silicone to secure with clamps overnight. The material formed to the curves in the bed bath and is quite attractive.

First things first, the material is thin but strong, it isn't rubber so it won't mold immediately and there will be creases as it gets laid in, however, once inside, we found that adding river pebbles of varying size and weight, helped hold the material down. Then we started filing it with water, which helps the material mold itself and further sink into the soil. This is southern Florida, so the soil here is rocky and has natural lime stone, the lime stone we couldn't dig out we covered with moist soil and mud, we did this before we laid the material in. With the weight of pebbles and water, it began to mold almost immediately. Also, we did this around 7pm, sun setting afternoon, by mid-day, the heat from the sun will further aid the material to molding around the opening. The remaining material I'd recommend one not to cut, we placed decorative concrete stones around it and over the excess, used soil from the hole to fill in around and over material and then mulched it to further hold it down. What you see in photo is this. Again, it isn't soft rubber but it's pretty good for a small pond which is about 7 ft long and 5.5 wide. At its deepest it's about 2.5 ft, at its most shallow about 10 inches. I'd recommend the material, the size is more than adequate for the laguna we had in mind. We should have put another layer on top of it, but it's strong as is, we've walked around inside it and it feels sturdy at 20 mil. Comes folded up tightly. Didn't notice any tears or holes in fabric. It's been holding water for hours without issue. So far, very good. Price point couldn't be beat and the reviews are pretty good. Will update with more photos when it's finished. 👍 Update photos as pond/laguna takes shape. Liner is still holding up without issue. Liner is folded beneath stones, as you can see the stones are heavy (over 40 pounds each) and some are stacked. We did this to make sure the material stays in place, doesn't shift towards submerged center. Also, has some security for wildlife currently in pond (fish and turtles). Inside liner is holding about 100 pounds of river pebbles. Hand chosen so as not to tear or poke liner. I recommend using smooth stones and rocks. For the curious: the submerged plant is Egyptian papyrus, other plants are Water Hyacinth (native to Florida) and wild grass orchids 🙂

So I installed it summer 2024 and it was fine. We have had a normal summer as far as heat, nothing extreme. I walked out to look at my pond today and it is splitting everywhere it was not completely covered. So it is junk and a total waste of money. I might as well flushed that money down a toilet. Now I will have to completely redo this pond in the spring again....It seemed the right weight but now it will leak and have holes...If I could give -1 stars I would. It was a lot of work putting this together now it has to be completely torn down and done over. My liner before this lasted several years.

Just as expected. Fast and easy to use. Great quality

I purchased this liner for my rebuilt waterfall. Pros and cons of this product. Pros: It is decently thick. I don't have any way to verify the thickness but I have no complaints about that aspect. I feel if you have a pond that's all angles such as a square or rectangle this product it should work ok. I didn't notice that it tore or punctured easily. If it doesn't hold up at least I didn't spend a lot of money on it and I'll just buy what I should've purchased in the 1st place: a good quality Epdm rubber liner. It was delivered on time and packaged very well. There were no visible flaws. Cons: It wasn't exactly the size advertised. Short length & width by 1- 1 1/2". The shorter length wasn't a problem but i was definitely counting on it to be 48" wide. I did leave it out in the sun for several hours to warm it up and remeasured but it was still short. That being said, even though it warmed up in sun for several hours I had a terrible time forming it for my waterfall. The folds from packaging never came out. It was just too stiff and not moldable at all. I tried to make the best out of the situation but I feel the folds may crack come winter. The folds were not the nice folds like rubber liners.... these were sharp, pointy folds. I will try to comment/edit this review in the spring. This liner is matte on one side and very shiny on the other side....I'm not a fan of the shiny side but I think I can get it hidden pretty good. I'm sure this could be a good product for somebody's project....it just wasn't what I should've used and I knew better.