I found this article by Brett Fogle the owner of MacArthur Water Gardens in which he explains the different ways that you can build a garden pond using a pool liner. If you want to avoid the effort of digging a hole it is possible to construct an above ground pond. On the other hand the most satisfactory arrangement is for the pond to be sunk into the ground.
Surprisingly enough, it is usually in mid-summer that many gardeners begin to think about installing a small pond or water garden. Ponds don’t need to be weeded or watered, and they can supply exuberant color in the form of water lilies and bog plants.
The sound of a splashing fountain or waterfall is more appealing than weeding a flower bed or mowing that section of lawn. Best of all, no matter how hot or wet it gets, the pond just keeps on blooming!
At this point you may start to think about the expense and labor of installing a concrete pond, and our 95 degree days are just about enough to stop this pond daydream in its tracks.
However, with the advent of newer pond liners and preformed pools, the misery associated with concrete mixing and finishing is a thing of the past. Heavy duty pool liners with 10 year guarantees are now common, and can sell for as little as $1.00 a square foot.
Preformed ponds in many different shapes and sizes are also an alternative method to create a quick pond at less cost than using concrete. Using these materials, the average gardener can install a decent size pond in less than one day, and have it stocked with plants, fish and fountain by the following morning.
The simplest kind of pond to build is an above-the-ground pond. Since no digging is required, it usually takes much longer to fill this pond with water than it does to build it!
There are many variations on this theme, but as an example, one can use treated lumber planks which are at least 2 inches thick by 12 inches wide, nail them together to form a rectangular shape of the desired dimensions, and place the form where the pond is desired.
Read the rest at The Garden Supplies Advisor
Image source Lucy Wayland