There would be nothing more disheartening than to spend a lot of time, effort and money on planning and building a new pond only to look out one morning to find your pond liner had let you down and your pond empty with dead fish at the bottom. This could happen and is the reason to choose the right pond liner at the outset and to install it correctly.
It may seem that there is a huge array of types of pond liners but in actual fact they only fall into a few categories and choosing the right one for you is quite easy. Get it right now and your pond will last you for years, quite likely even your lifetime.
The most common types of liner are PVC, LDPE and Rubber.
PVC liners are best suited to the smaller, ornamental garden pond. They should also be fitted over a pond liner underlay for maximum safety. I would also lay a bed of sand under any liner to protect from sharp stones.
LDPE (Low Density Polyethylene). This is an ultra-tight weave of tough fibres which are then sandwiched between two layers of rot and UV resistant laminated coating. The result of this is that these liners are tough and astrong; however they still remain supple and flexible enough to be moved easily into position when building your pond.
Rubber (often referred to as butyl or EPDM) pond liners are excellent for any pond installations as butyl easily moulds itself to the pond’s contours. It is very flexible and elastic, although its thickness makes it quite heavy. It is also UV stable and so will not deteriorate when exposed to sunshine. Butyl is usually .75mm in thickness. EPDM tends to be a little thicker for the same resilience value, often 1mm, although it is said to be more resilient to puncturing, but not as resilient as butyl to impact. EDPM is also a little cheaper than butyl.
The choice therefore comes down to the size of the pond you are building and of course that dreaded word; budget. Butyl will be the most expensive option, but for a larger project, you will be getting a liner to possibly last a lifetime. All liners should come with a guarantee and this will give you a good idea of how good that liner is. It is better to cut down on the size of the project than the quality of your liner.
For more advice and some great deals on pond liners, you may like to see some of the following web sites which we recommend for quality as well as price.