Digging a pond for a pond liner pond

The Liner Pond

1. Mark the edges of the pond area with sand, a hose or a piece of string.

2. Build in shelves and various zones for plants: bog zone up to 4” deep, shallow water zone 8” - 16” deep, deep water zone 2´-5´.

3. Work from the edges toward the middle and dig a ditch 6” deep around the pond. This is important for drainage because it stops the pond water from being siphoned into the surrounding garden. After planting the ditch it is filled up with gravel and the overlapping liner can be cut back.

4. Dig the hole deeper than the pond is supposed to be and remove all stones and roots. Important for fish-ponds: a wide beach area protects fish from cats. Install a safe exit (i.e., ramp) in case animals fall into the pond. Consider building recesses for installing planting baskets later.

5. Fill the excavated hole with 6” of sand and pat it down firmly.

6. Calculate the required amount of liner. Add 1.5´on each side for the edge on the pond. For a precise calculation, refer to the following formulas:

Liner:

Length of liner = Length of pond+ 2 x Depth of pond + 2 x 1.5´ (edges) Width of liner = Width of pond + 2 x Depth of pond + 2 x 1.5´ (edges).

7. Bury your spiral hoses for water supply and water drainage. Cover the base and walls of the excavated pond with underlay, press it down and cut off any overlapping pieces. Then lay the pond liner in the excavated hole, for example OASE ALPHA. Make sure to avoid creasing the liner. Then weld it together with PVC adhesives. Before cutting it to size, it is a good idea to partly fill it with water. This helps ensure the liner is big enough before cutting. Use the OASE stone liner for a natural looking edging.

8. Line with pebbles and stones and set up the platforms for the planting baskets. Fill the deep-water zone.

9. Now you can start the planting. 

 

 

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