Puddling Clay - the natural, cost-effective and simple way to line your pond - soilhillquarries.co.uk
Stockfoto Mud, primer, puddle, clay, jungle | Adobe Stock
Clay lined pond
Natural Pools - Sagara's key-shaped DIY Organic Pool in Cornwall. Puddling clay was used to create a big plug at the bottom. There is pond liner at the sides and the edges