Using our round pond 72×27 liner (1800 litre rigid pond liner) Kate kindly shows how they constructed a round rigid pond design. In the picture gallery below you can scroll between the 5 pictures we have for you. First making sure the ground is flat and firm the pond liner is positioned for the first time. By filling with water then forms a perfect circle allows you to see if the water level in the pond is installed correctly. High quality materials have been Incorporated in the design before cladding the pond he uses polystyrene insulation to help protect from frost. Capping off the edge with matching tanalised timbers with 20 life from FSC approved sources. A simple fountain pump airates the water. Finally the finished off with stones. Thank you for looking.