Printed from: https://conservationhandbooks.com/waterways-wetlands/artificial-linings/flexible-linings/
Flexible liners made of PVC, polyethylene or butyl rubber can be used for pond construction. PVC is available in single or double thickness, and in various colours. It is stretchy and easy to fit, but is not resistant to ultraviolet light, and eventually deteriorates. Triple thickness low density polyethylene (LDPE) is more durable than PVC,...