I’m planning a pond, about 10 x 3 mtr, wha is a bit wide for standard lining sheets. So, I’m thinking of using clay. Where to get the right type of clay, and helpful instructions on how to do that?
Clay for pond lining is a lot of work and not all that reliable. It needs to be heavy pottery clay, or marl, laid 15cm deep, and heavily and evenly compacted.