![]() However, installing a concrete fish pond or water garden will require a professional. Concrete is incredibly durable and can be patched and repaired when needed. If one really wants to go all-out, a concrete liner is likely the option they'll choose. Remember that the hole dug for the pond must support these features and that they can't be simply placed into a bowl-shaped hole which will place the weight of the water entirely on the fiberglass. ![]() Some fiberglass liners will come with features such as planting shelves added into the design. One must put in a layer of very compacted brick dust to accommodate these liners. These have the disadvantages of looking artificial and being complex to install. For sheer durability, there are few better choices. A fiberglass liner is not flexible and, therefore, the pond must be designed around the liner. They are toxic to some animals and, therefore, may not be the best choice for those who want a koi pond.įiberglass has been in use for almost a century and it is famously tough. If one is installing a fish pond, make very certain that the fish will not be negatively affected by these liners. These are long-lasting, on the same level as EPDM and are fairly easy to work with though they are hard to fold. Rubber liners, specifically Butyl Rubber, are probably what most people have in mind when they think of a liner. The material of which these are made is famously tough. They are one of the less-expensive options, however, and are generally safe for flora and fauna. They do not offer good performance in cold zones. These liners have a life expectancy of 15 years. Somewhere in between the aforementioned options is HDPE. Direct sunlight can also have a detrimental effect on this material. This material is not desirable for cold climates, however, and one should take this into consideration if they live in a more northern zone. This material conforms to the pond layout with little work and can provide about 10 years of service, in most cases. PVC is very inexpensive and is easy to use. It is, however, expensive compared to some of the other options. EPDM liner, for example, is very long-lasting (able to withstand a couple of decades of use), is resistant to ultraviolet radiation and can offer excellent performance in cold climates. Advantages & DisadvantagesĮach type of pond liner has an edge in certain regards. Remember that one must lay a layer of brick sand under the liner for it to function correctly. Most of these are made out of fiberglass. It simplifies the process of digging out the pond and a preformed liner can provide years of good service. ![]() Preformed liners have the disadvantage of not allowing the owner to choose their own shape but sometimes this is actually desirable. Though it will obviously be completely inflexible when it dries, a professional can lay concrete to fit any shape desired. One may also use concrete as a sort of flexible liner. Liners made of PVC (Polyvinylchloride), HDPE (High Density Polyethylene), EPDM (Ethylene Propylene Diene Monomer) and Butyl Rubber are the most common choices for flexible liners. This is an excellent choice for those who are going for a very natural look for their fish or garden pond. With a bit of work, a flexible pond liner can be cut to fit the shape of any pond. The first question to ask is whether one wishes to design their pond around the liner or to purchase a liner that conforms to their ideal pond. ![]() The pond liner will be one of the most important decisions one makes regarding the construction of their pond. ![]()
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