Choosing the Right Liner for your Outdoor Pond
There are several types of liners from which to choose when you are thinking about installing an outdoor pond for your yard. A pre-formed plastic liner is sturdy and durable and will be fairly easy to install. However, these do not allow for much customization of your pond. A concrete liner is very durable and quite permanent, but may be hard to install and tend to cost a lot. Installing a concrete liner should be left to serious do it yourselfers or professionals.
Butyl rubber and synthetic polyethylene liners are the most commonly used because of their versatility. You can choose from several thicknesses and these liners will be able to cover any type of shape of pond that you can imagine. Polyethylene is affordable and commonly used, but it is not as flexible and will become brittle with age. It is best for a temporary set up. PVC, LDPE, and butyl rubber may cost more, but they are more durable and will last for a longer time. These come in a number of different thicknesses and sizes to meet your individual needs. It is recommended that you use an underlay under the lining in order to prevent leaks and punctures from occurring. You should not cut corners in this area because if the liner leaks you will have to tear down the entire pond apart and begin again. You can choose a commercial underlay or use old carpet, felt, sand, or polyethylene bags.
Choosing a Size for your Liner
Material for liner can be expensive, so it is important to make sure that you choose the correct sized liner for your pond. You will want to measure the pond’s length at the longest point and the width at the widest point. Then measure the deepest point of the pond. You will then take twice of the maximum depth and then add it to the length in order to get the total length of your liner. You will then take twice the maximum depth to add to the width at the widest point for the overall width. You will want to add a foot or two to the overall length and width in order to have enough overlap for the edges of the pond.