Is there a means to ascertain the liner used when, thirty-years ago these ponds were constructed? For certain, the product is not HDPE or similar and given the liner is not buried it is not PVC. The existing material is thin, probably not more than 10-mils and closely conforms to the pond bottom. Once you start to add fish to your new pond, you will see they are “poo” machines, and even with the best pump in the world, you’re going to see fish waste and debris on the pond floor. Lighter pond colour liners will show this dirt much easier – so be prepared for daily cleans. Can you paint a pond liner blue? According to Michigan State University , pond dye has no negative effect on emergent or floating plants. So, you can cultivate water lilies in your pond with confidence. What Does Pond Dye Do For A Pond? Unfortunately, this softness comes at a price. LLDPE liners have less tensile strength than HDPE liners, meaning they’re more susceptible to length-wise deformation and tears. Geomembranes made from LLDPE are also not quite as resistant to UV rays, chemicals, and oxidation as those made from HDPE. 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

EPDM rubber, while offering the same high quality and resistances as Butyl rubber, is a popular budget friendly alternative that has a shorter expected working lifetime. The best pond liner is one that is easy to lay, suits your budget, lasts a lifetime, and doesn’t leak. How do I choose which pond liner will be the best for me? For example, the best color for koi pond use is usually dark. This helps show off their vibrant colors to the best effect.The choice in pond liner colour will not directly affect the health of your fish (or any aquatic life), however there are risks associated with using a lighter colour for your pond liner . Every pond liner’s primary job is to hold your pond’s water. 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, 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. Once in the pond, box welded liners do not have any unsightly folds or creases that need to be hidden as you would get if using a flat sheet liner. Box welded pond liners are also manufactured with a flange around the top that can be laid under paving flags to secure the top of the liner. If your pond liner priorities are physical strength and plasticity, then flexible polypropylene (fPP) is definitely worth considering. As the name suggests, fPP liners are very innately flexible without the need for additives like plasticizers. As a result, they can be easily molded and formed to fit your pond’s tightest corners and recesses. fPP geomembranes can also conform tightly to even extremely irregular surfaces, giving them good gripping power against pond slopes and rough terrain. Liners made from fPP can take a lot of strain from different angles and stretch without breaking or deforming, making them fairly resistant to tears, scratches, and punctures. They even remain pliable until -50°C, making them more than suitable for ponds in temperate climates.

Darker Pond liners help prevent the growth of Algae and Blanket Weed when compared to blue pond liners. Stan, you’re welcome to upload a picture and post in a new comment using a hosting service like this one: https://postimages.orgOur flat sheet Butyl rubber pond liner carries a 20 year guarantee and has an expected working lifetime of around 50 years. Excellent article! It’s really helped me in narrowing down my choice of liner for my first pond. Thank you. Reply First, consider the natural surroundings of your pond and your garden space. The shape, materials, and color of your pond should reflect the overall style and theme of your landscape . It should also fit the tone of your home’s architecture. Choose a Color that Complements Your Landscape

What type of plants and fish do you plan to put in your pond? Different plants and fish thrive in different types of water, and the color of the pond impacts their health and growth. Painting the area of pond liner that is not exposed to water is possible, but as the pond liners are not non-porous the paint really hasn’t got anything to adhere to and will eventually just scrape / rub off leaving a very messy pond liner.

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There are a wide variety of liners out there and it can get confusing even for someone that works in the industry because each manufacture has their own “special material” which is typically just a tweak on an existing material. We have been fabricating box welded liners for over 50 years, and have done everything from simple circular or rectangular shapes right up to ponds with multiple steps, varying wall angles and separate sections. Thank you for this information. I have a pond liner that I’ve been using for about 3 years with no problems. I’m looking to buy another pond liner and attaching them together but because I bought it so long ago, I don’t remember what type it is. It is very flexible, wasn’t too expensive, seems to be durable, and, probably most telling, it has been welded together at the factory. Any suggestion as to what type of liner this is?

Our huge selection of quality pond liners includes everything you need to provide a perfect water tight base for your pond.If you have a more formal type of pond, you may need to use very bold colored pond liner epoxy. Colors like white or competition blue might make a statement. By the way, competition blue is a perfect color for fresh and saltwater aquariums too. The palette of pond colors isn’t as narrow as you’d think, but some hues are more popular than others. Blue and Green Hues Below are some factors to consider when choosing the color of your pond. Consider Your Surroundings There was also a theory that the break down of the pond liners could potentially affect the health of your fish and other aquatic life due “free radicals” being released during the degrading of the plastic liner. The calculator above is easy to use, we can assist whether you know what size liner you need or you have the dimensions of your pond and need help calculating the final sheet size: just select the buttons that suit you and type in your measurements..