Here is a step-by-step guide to making your own pond

Cushion Layer

When you have finished digging, smooth over the surface, removing any sharp stones etc. Next, collect together lots of soft material such as newspapers, pieces of carpet or sheets of damp cardboard; lay a 50 mm cushioning layer all over the surface. Extend this protection over the edge of the hole - the edges are the most likely areas to get punctured.

Read More: The Lining

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