Installing your flexible pond liner

At Aquatic Village we stock a wide range of flexible pond liners. The desire to create your own water garden is, understandably, very strong. If you’ve never had a pond before, there are one or two things you need to know before rushing to the garden shed for your spade, including: Position, Power & Safety.


Part of your preparations involve choosing a site and several factors must be taken into consideration.  The most important is correct orientation for sunlight. This is essential where a biological balance is to be maintained, the energy of the sun being vital both to fish, in activating them by warm water temperatures and to plants for correct growth. It can also be just as important a consideration for other forms of water feature as the interaction of sunlight and water is often the main attraction.


From a practical point of view you must consider the best position in relation to the water and electricity supplies as it could be very expensive to lead supplies over long distances. When installing electrics always use an appropriate R.C.D (trip switch). If in doubt please consult an electrician.


If there are young children in the family it would be wiser to position the pond where it can be easily seen from the house for safety reasons.

Installing your flexible pond liner

Stage 1:

Mark the outline of the pond and use as a guide to remove any turf and all of the soil down to the first shelf level at a depth of around 23 cm (9”).

Stage 3:

It is very important to cover the hole with liner underlay; this is a fast way of protecting the pond liner from stones or roots.

Position the liner evenly over the hole, then place bricks or other weights around the overlap and begin to slowly fill the pond with water.

Stage 2:

Use a plank and spirit level to make sure the hole is level.  Check for any stones or tree roots that could puncture the liner.

Mark out the position of your inner, deeper section using string or wooden pegs as before and dig out the inner section making sure the bottom is level.

Stage 4:

When the pond is full trim off any excess liner leaving an overlap of at least 15cm (6”). The surplus can be hidden beneath the rocks, turf or paving slabs bedded on water. Paving slabs should protrude slightly to hide the liner from view.