Installation guide

In this section :-
Flat sheet liner
Box-welded liner
Bottom drains, pipe returns and skimmers

Flat sheet liner installation guide

Check excavation for any sharp objects and remove if necessary.
Install appropriate liner protection e.g. geotextile / sand layer base.
Lay liner at one end of pond and unroll liner through length of pond.
Fold back the 'leaves' of the liner. When ends of liner are exposed, pull liner out, flipping it slightly so as to create air under liner. It will float into place across area of the pond.
Form liner into shape then fill with water ensuring liner fits snugly to contours of excavation without being under tension or excessive stretching.
When full with water, trim off excess liner leaving sufficient around the top for anchoring.

Under no circumstances should the liner be under tension at this stage as it will affect its life expectancy.

1) Check excavation and remove any sharp or protruding objects.
2) Install appropriate liner protector e.g. Geotextile underlay

3) Place liner in pond and unroll through length

4) Unfold and pull liner into place along bottom of the pond

5) Step into middle and lift walls of liner into place and place blocks around edge to hold liner in place.

6) After liner is roughly held in position held by blocks or weights, work your way around the liner, adjusting it in to correct position.

7) Fill with water steadily, not forgetting to adjust blocks around the top to compensate for adjustment in tension. We recommend that you don't leave the pond for long periods of time in order that you can keep an eye on the tension of the liner as it fills. Under no circumstances should any part of the liner be under excessive tension at this stage.
8) When full, anchor the edges permanently.

The use of bottom drains, pipe returns and skimmers is common and should not cause concern regarding the fitting of them.

1) Install liner
2) Stabilise area around bottom drain to prevent movement
3) Mark around inner ring of bottom drain and cut out

4) Ensure surfaces are clean
5) Using two small screwdrivers, locate screw holes in bottom drain and pierce liner

6) Apply a bead of sealant (approx 10mm) to bottom drain under the liner

7) Push liner down onto sealant
8) Apply a bead of sealant on top of liner

9) Remove one of the screwdrivers; pass it through one of the screw holes in the top ring. Locate screwdriver back into hole made in bottom drain. Remove second screwdriver, locate into correct hole and sit ring on to sealant.
10) Now all holes in top ring should match holes in the bottom drain, fasten down with self-tapping screws.