When locating the formal water feature, avoid being near to trees - not just are fallen leaves a pain in autumn, but tree roots can harm even the most effective protected pond liners.

In addition to choosing to create a typical shaped pond, it is also important to consider the type of edging you are going to lay round the perimeter. 

The primary function of the edging is always to secure the liner in place but must also merge with the surrounding landscape and the formal nature of the pond. Flagstone is a well known selection of edging material.

 The edging needs to be a minimum of 8-10cms deep to offer a safe anchor for the liner and Jute feltmake disguising the edge of the pool much easier. It is essential when ordering your box-welded liner to make sure that you enable a sufficiently wide flange around the most effective edge to cater for many finishing details.

If the pond is to be useful for koi carp, bottom drainage should be considered, with the ground of the pond sloping gently to a number of sumps that soiled water can be taken to an additional filter system.