
What is the best material for a pond liner?
Polyvinyl Chloride liners, popularly called PVC liners, are one of the most inexpensive flexible pond liners. These liners have a dedicated lifespan of 18-30 years, depending on surrounding conditions and fixtures. Unmatched flexibility: PVC is trendy because of its unmatched flexibility.
What is the lifespan of a pond liner?
PVC liners also have inferior ozone and UV resistance, and, as a result, they could experience premature degradation unless they’re buried under at least 12″ of sediment (when covered, PVC geomembranes can last between 18 and 32 years, depending on the plasticizers used). This can be a hassle, especially for owners of smaller ponds.
Are HDPE liners safe for fish ponds?
HDPE liners are commonly used in landfills and chemical containment sites, but they are also safe and well-suited for fish ponds. No matter where they are, HDPE liners are very durable, having been found to last upwards of 36 years when covered. Unfortunately, HDPE liners are far from perfect.
Do EPDM pond liners need an underlayment?
Consider these facts about EPDM pond liners: Ponds lined with EPDM require an underlayment due to how soft and flexible the material is Sheets of EPDM liner can’t be welded together with heat, but can be adhered with liner tape
Which is the least expensive pond liner?
What is RPE pond liners?
Why are EPDM liners so hard to ship?
Why are plasticizers added to PVC?
What is the best liner for UV protection?
Do RPE liners need underlayment?
Is RPE a good pond liner?
See more

Is PVC pond liner toxic?
Some PVC liners are marketed as fish-safe, but they still use plasticizers to maintain flexibility, and can contain small amounts of arsenic and other toxins.
Is pond liner safe for fish?
Liner Grades Polyethylenes as a class are non-toxic to fish and plants, so unless the manufacturer applies some sort of coating, these liners can be assumed to be safe in your pond. PVC and EPDM are both available in "pond safe" versions, which generally pushes their price point up substantially.
Is PVC pond liner food grade?
Food-Grade Certified Liners Materials like reinforced polyethylene (RPE) and reinforced polypropylene (RPP) are certified food grade, unlike PVC, which has the potential to release plasticizers into the water it's containing.
Is PVC a good pond liner?
PVC sold for ponds may or may not include a stabilizer. Without it they are less resistant to sun light. They are fish and plant safe, if the product is specifically made for ponds. Other types of PVC can contain chemicals toxic to fish.
Which is better PVC or EPDM pond liner?
Polyvinyl chloride (PVC) liners are the least expensive option when it comes to flexible pond liners. They're not quite as heavy as EPDM liners and offer slightly more resistance to punctures. Plus, PVC liners are relatively flexible and you can use liner tape to seal together multiple sheets to fit your pond's shape.
Does pond liner leach chemicals?
Pond Liners Are All Fish Safe Unfortunately, these chemicals slowly leach out into the water and can affect sensitive plants and fish. A pond liner that isn't rated as fish-safe is likely a threat to the long-term health of the pond life.
Is PVC vinyl food safe?
Are flexible PVC (vinyl) film and sheets food-safe? No. Grafix stocks other types of film products that are food-safe, including acetate, specific brands and grades of polyester film, HDPE and polypropylene.
Is PVC safe for aquaponics?
You can use rigid PVC (uPVC) piping in aquaponics. This type of PVC is food safe, so it will not harm any fish or plants that it comes into contact with. In fact, it's ideal to use when building vertical aquaponics systems, growing strawberries, or separating shrimp from fish in an aquaponics system.
Is all PVC food grade?
This article aims to answer the question, is PVC food safe? Well, in simple words, the answer is yes. Thanks to the aforementioned NSF-51 standards along with FDA approval, it is safe to conclude that PVC is food graded. UPVC, in particular, is an extremely safe material and very low maintenance.
How long will a PVC pond liner last?
20 yearsThe best quality 0.5mm PVC pond liners can last up to 20 years, as long as they are correctly installed and maintained. It should be noted that PVC is not fully UV resistant, so if the water level in the pond is low and the PVC exposed, this can cause the PVC to become brittle over time.
What is the best material for a pond liner?
High Density Polyethylene, better known as HDPE, is a fantastic material for lining larger ponds. Although it is thinner and lighter than both EPDM and PVC, it is actually stiffer and this makes it better at resisting tears and punctures.
What is the most eco friendly pond liner?
ECOLAN® pond film is made from eco-friendly EPDM rubber. The material contains no toxic substances, heavy metals or aggressive softeners and is resistant to leaching.
RPE – Reinforced Polyethylene Pond Liners
RPE pond liners are by far the most durable of all of the materials available. Because these liners are reinforced, they are stronger and more punc...
EPDM – Ethylene Propylene Diene Monomer Pond Liners
For many years, EPDM pond liners have been the go-to material in the construction of ponds of varying kinds. With the rise of RPE liners, EPDM has...
Pvc – Polyvinyl Chloride Pond Liners
The third popular type of material for pond liners is PVC. PVC liners are generally the least expensive option, but their downsides far outweigh th...
What happens if you choose a low grade pond liner?
When building a fish pond, the underlayment and liner are the foundation of the pond. So if you choose an inferior quality or low- grade pond liner, it will probably lead to a possible leaky pond, costly repairs, and headaches.
What is a pond liners?
The pond liners are also versatile and used in a wide variety of applications such as skimmers and waterfalls , fish hatcheries, retention, and Koi ponds and pond free waterfalls. They are certified fish and wildlife safe by Guardian Systems Inc. and easily attach to skimmers and filtering waterfalls.
What is a lifeguard pond liner?
LifeGuard pond liners are the best choice for installers and feature owners around the globe. The Underguard underlayment protects and promotes the lifespan of the pond liner, and they both work together to bring unmatched quality to your backyard.
What are the advantages of Aquascape liner?
Some of the advantages of the Aquascape fish pond liner is its superior elongation and lay-flat characteristics, ease of installation without the need for extra or special tools, as well as exceptional resistance to ozone, solar UV, and oxidation.
How thick is a Firestone pond liner?
It is one of the easiest pond liners to maintain, and they are designed to last. These pond liners are 15′ x 20′ and approximately 45 inches thick.
How do I fix a pond liner leak?
There are a few ways that you can repair a pond liner leak depending on the time frame, and budget that you have. Using a rag, clean around the hole to remove algae and dirt. It is possible to fix the leaky liner without draining the water by using a specific type of sealant. It is, of course, safe for fish and plants.
What should I do before installing a pond liner?
Before installing the pond liner, you should put down an underlayment. This extra layer works as padding against sharp objects, rocks and roots.
EPDM
Epdm is a rubber liner. It’s incredibly tough and durable! Being rubber it is able to expand up to 3 times, this makes it far more puncture resistant and more kid and animal proof than any other liner.
HDPE
Hdpe is incredibly strong and durable for its thickness. It’s very cheap and lasts a long time. The guarantee on most brands in 20 years.
Geo-textile underlayment
Your pond liner is one of, if not the most expensive aspect of your pond build. Protect your investment.
Rigid liners
Rigid liners are preformed pond shapes. They are made form fish safe uv stabilised plastics. Although some are made from fibreglass or special resins.
Reduce maintenance
To help you build a maintenance free pond you might be interested in looking at some of my other articles. Specifically bog and wetland filtration for ponds.
What are pond liners made of?
Pond liners are large, foldable sheets made of either plastic or synthetic rubber. Depending on the material, some companies can custom manufacture liners for individual ponds in-factory.
What is a flexible pond liner called?
However, manufacturers make flexible liners — often called “geomembranes” by engineers — with a wide variety of materials, each of which has pros and cons depending on a pond’s individual setup. Your liner needs to stay stable in the hottest and coldest temperatures your area is likely to experience, and it shouldn’t snag, puncture, ...
What is EPDM lining?
Ethylene propylene diene monomer rubber, or EPDM, is a synthetic rubber and one of the most popular geomembrane materials used for lining ponds. EPDM liners are soft but durable, giving them a nice balance of flexibility and toughness.
What is LLDPE liner?
Given that they’re made from the same plastic, it’s no surprise that linear low density polyethylene (LLDPE) and HDPE liners have several things in common. These liner types share the same fairly inexpensive price, and both have to be seamed from multiple sheets in the field by professionals, rather than custom-fabricated in the factory. Like HDPE, LLDPE is weldable, nontoxic to fish, and functions well in in typical pondwater temperatures, though it’s also commonly used in liners that are intended to contain water contaminated with waste or hazardous chemicals.
How long do LLDPE geomembrane liners last?
Consequently, LLDPE liners may not be as durable when exposed to the elements (when used as recommended, LLDPE liners may last up to 36 years ). LLDPE Liners.
How long do HDPE liners last?
No matter where they are, HDPE liners are very durable, having been found to last upwards of 36 years when covered. Unfortunately, HDPE liners are far from perfect.
Why is my liner not snag?
Your liner needs to stay stable in the hottest and coldest temperatures your area is likely to experience, and it shouldn’t snag, puncture, or tear due to objects or irregularities in the ground underneath. If your liner is exposed, it has to stand up to both UV rays and harsh weather.
Which is the least expensive pond liner?
PVC liners are generally the least expensive option, but their downsides far outweigh their low cost. Looking at all three pond liner materials side-by-side, it’s clear to see that RPE is the best choice for all types of ponds and liner projects.
What is RPE pond liners?
RPE - Reinforced Polyethylene Pond Liners. RPE pond liners are by far the most durable of all of the materials available. Because these liners are reinforced, they are stronger and more puncture resistant than the two other major types of pond liners.
Why are EPDM liners so hard to ship?
EPDM liners can be difficult to ship due to heavy weight concerns. EPDM liners are the heaviest of the three liner materials. EPDM liners are the least puncture resistant of the three materials. EPDM liners are fish and plant safe.
Why are plasticizers added to PVC?
Plasticizers are added to PVC to make the liners more flexible. These liners can contain trace amounts of arsenic and other toxins that are lethal to pond fish. Plasticizers also can cause cracks or splits in the liners, which threaten wildlife. PVC liners are inexpensive and easy to use, but not desirable for cold climates.
What is the best liner for UV protection?
The most versatile liner on the market today, Aqua Armor maximizes protection from harmful UV rays, tear resistance and punctures that cause leaks. Simply the best liner on the market.
Do RPE liners need underlayment?
RPE pond liners don’t require under layment because of their strength and puncture resistance. RPE pond liners are considered to be the most durable liners available and last upwards of 40 years. Can be welded together with heat. RPE liners are fish and plant safe.
Is RPE a good pond liner?
RPE packs smaller than other liners and is easier to install. Because RPE liners are reinforced and stronger they don’t stretch as much as EDPM liners, but can still fold around corners and pond shelves and look good. RPE pond liners don’t require underlayment because of their strength and puncture resistance.
